Sponsors

Showing posts with label Windows7 tricks. Show all posts
Showing posts with label Windows7 tricks. Show all posts

Blogger digs up Windows 7 security hole


Share/Save/Bookmark

Changes to UAC open up can of mischief-making worms

Blogger Long Zheng on I Started Something has highlighted a potential security problem with the Windows 7 beta, where Microsoft's decision to change the way UAC works could let an attacker disable UAC without the user's knowledge.

Windows 7's default UAC setting is set to notify the user when programs make changes but not to prompt when a user or Windows changes settings.

"How it distinguishes between a (third party) program and Windows is with a security certificate," Zheng explains. "The applications/applets which manage Windows settings are signed with a special Microsoft Windows 7 certificate. As such, control panel items are signed with this certificate so they don't prompt UAC if you change any system settings."

Zheng continues: "The Achilles' heel of this system is that changing UAC is also considered a 'change to Windows settings', which coupled with the new default UAC security level, would not prompt you if changed. Even to disable UAC entirely."

Shortcut to exploit

"Of course it's not a security vulnerability if you have to coerce the user into disabling UAC themselves," says Zheng. "I had to think 'bad thoughts' to come up with a way to disable UAC without the user's interaction."

That didn't take long. "The solution was trivial, you could complete the whole process with just keyboard shortcuts so why not make an application that emulates a sequence of keyboard inputs."

Long Zheng and helper Rafael Rivera then came up with a proof-of-concept VBScript to emulate the keystrokes without prompting UAC.

It's a simple problem with a simple solution - set the UAC policy to Always Notify - but it raises the age old question about usability versus security.

User error

It's often said that the weakest security point of any computer is the user, and by bowing down to calls to quieten down the irritating UAC, Microsoft may have compromised security.

With the issue gaining notoriety, it seems likely that Microsoft will look again at the potential for mischief.

And that's what betas are for, right?



--------------------------------------------------------

If you like this post please Bookmark it and comment bellow. To recieve new updates and other posts like this please subscribe via RSS or via Email.

Recent Articles:

--------------------------------------------------------

Share/Save/Bookmark

50 seriously useful Windows 7 tips (Performance and productivity tips)


Share/Save/Bookmark
back page: Useful Windows 7 Enhancements

39. Find bottlenecks
From what we've seen so far Windows 7 is already performing better than Vista, but if your PC seems sluggish then it's now much easier to uncover the bottleneck. Click Start, type RESMON and press [Enter] to launch the Resource Monitor, then click the CPU, Memory, Disk or Network tabs. Windows 7 will immediately show which processes are hogging the most system resources.

The CPU view is particularly useful, and provides something like a more powerful version of Task Manager. If a program has locked up, for example, then right-click its name in the list and select Analyze Process. Windows will then try to tell you why it's hanging - the program might be waiting for another process, perhaps - which could give you the information you need to fix the problem.

40. Keyboard shortcuts
Windows 7 supports several useful new keyboard shortcuts.

Alt+P
Display/ hide the Explorer preview pane

Windows Logo+G
Display gadgets in front of other windows

Windows Logo++ (plus key)
Zoom in, where appropriate

Windows Logo+- (minus key)
Zoom out, where appropriate

Windows Logo+Up
Maximise the current window

Windows Logo+Down
Minimise the current window

Windows Logo+Left
Snap to the left hand side of the screen

Windows Logo+Right
Snap to the right hand side of the screen

Windows Logo+Home
Minimise/ restore everything except the current window

41. Faster program launches
If you've launched one instance of a program but want to start another, then don't work your way back through the Start menu. It's much quicker to just hold down Shift and click on the program's icon (or middle-click it), and Windows 7 will start a new instance for you.

42. Speedy video access
Want faster access to your Videos folder? Windows 7 now lets you add it to the Start menu. Just right-click the Start orb, click Properties > Start Menu > Customize, and set the Videos option to "Display as a link". If you've a TV tuner that works with Windows 7 then you'll appreciate the new option to display the Recorded TV folder on the Start menu, too.

43. Run web searches
The Windows 7 search tool can now be easily extended to search online resources, just as long as someone creates an appropriate search connector. To add Flickr support, say, visit I Started Something, click Download the Connector, choose the Open option and watch as it's downloaded (the file is tiny, it'll only take a moment). A "Flickr Search" option will be added to your Searches folder, and you'll be able to search images from your desktop.

44. Schedule Media Centre downloads
You can now tell Windows Media Centre to download data at a specific time, perhaps overnight, a useful way to prevent it sapping your bandwidth for the rest of the day. Launch Media Centre, go to Tasks > Settings > General > Automatic Download Options, and set the download start and stop times that you'd like it to use.

45. Multi-threaded Robocopies
Anyone who's ever used the excellent command-line robocopy tool will appreciate the new switches introduced with Windows 7. Our favourite, /MT, can improve speed by carrying out multi-threaded copies with the number of threads you specify (you can have up to 128, though that might be going a little too far). Enter robocopy /? at a command line for the full details.

46. Really remove the sidebar
At first glance you might think Windows 7 has got rid of the sidebar, but don't be fooled. Gadgets are still hosted by the Sidebar.exe process, it's just that this is now launched automatically when Windows boots. If you don't plan on ever using gadgets then you could delete the Sidebar Registry entry at HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run, and recover a small amount of RAM. That might be a little risky, though, as we're not quite sure what else the sidebar process does in Windows 7. The safest approach is to disable it temporarily by launching MSCONFIG.EXE, clicking the Startup tab and clearing the box next to the Startup entry. Now reboot and test Windows 7 for a day or two to confirm everything is still working, before finally deleting the sidebar Registry entry.

47. Load IE faster
Some Internet Explorer add-ons can take a while to start, dragging down the browser's performance, but at least IE8 can now point a finger at the worst resource hogs. Click Tools > Manage Add-ons, check the Load Time in the right-hand column, and you'll immediately see which browser extensions are slowing you down.

48. An Alt+Tab alternative
You want to access one of the five Explorer windows you have open, but there are so many other programs running that Alt+Tab makes it hard to pick out what you need. The solution? Hold down the Ctrl key while you click on the Explorer icon. Windows 7 will then cycle through the Explorer windows only, a much quicker way to locate the right one. (And of course this works with any application that has multiple windows open.)

49. Block annoying alerts
Just like Vista, Windows 7 will display a suitably stern warning if it thinks your antivirus, firewall or other security settings are incorrect.

But unlike Vista, if you disagree then you can now turn off alerts on individual topics. If you no longer want to see warnings just because you've dared to turn off the Windows firewall, say, then click Control Panel > System and Security > Action Centre > Change Action Centre settings, clear the Network Firewall box and click OK.

50. Parallel defrags
The standard Windows 7 defragger offers a little more control than we saw in Vista, and the command line version also has some interesting new features. The /r switch will defrag multiple drives in parallel, for instance (they'll obviously need to be physically separate drives for this to be useful). The /h switch runs the defrag at a higher than normal priority, and the /u switch provides regular progress reports so you can see exactly what's going on. Enter the command

defrag /c /h /u /r

in a command window to speedily defrag a system with multiple drives, or enter defrag /? to view the new options for yourself.



--------------------------------------------------------

If you like this post please Bookmark it and comment bellow. To recieve new updates and other posts like this please subscribe via RSS or via Email.

Recent Articles:

--------------------------------------------------------

Share/Save/Bookmark

10 top tips for Windows 7 power users


Share/Save/Bookmark

We've been using Windows 7 for a couple of weeks now, yet it continues to surprise.

Two weeks ago, we kicked off our series of Windows 7 tips and tweaks with an initial 10 Windows 7 tips. And last week, we followed up with a second batch 10 Windows 7 tips, tricks and secrets.

We're still uncovering small tweaks, interesting Registry settings, new programs, and fascinating hidden features that you'll want to explore.

This week we reveal our 10 tips for Windows 7 power users.

1. Automatic PC cleanup
If inexperienced PC users sometimes access your system then you'll know that, well, this can cause problems. Leave them alone for too long and they'll mess up your settings, install dubious programs, delete important files and cause all kinds of havoc.

But Microsoft feels your pain, and Windows 7 will include a possible solution: PC Safeguard. This lets your less technical users log on, play games, use the browser or chat on an instant messenger, say, just as normal. But when they log off, any settings they've changed are undone, and any files they've saved are deleted. Which means it's much more difficult to mess up your PC.

This isn't a new technology. Microsoft has made its Shared Computer Toolkit (aka Windows SteadyState) freely available for years, and this does exactly the same thing (it's more configurable, too). This is the first time it's been fully integrated with Windows, though, which makes it much easier to use.

To give PC Safeguard a try, go to Control Panel > User Accounts and Family Safety > User Accounts > Manage another account > Create a new account. Enter an account name, click Create, then click the account, select Set Up PC Safeguard > Turn on PC Safeguard > Apply. Log on as that user, try downloading and installing a program, then restart and log on again to confirm that the software has gone.

2. Search everything
Windows 7 can now try to search the contents of just about any file type, useful if it's not currently finding the data you need. The problem? Searches can be much, much slower. If you'd like to try it anyway, then launch Explorer, click Tools > Folder Options > View and check "Try to search the content of unknown file types".

3. Find bottlenecks
From what we've seen so far Windows 7 is already performing better than Vista, but if your PC seems sluggish then it's now much easier to uncover the bottleneck. Click Start, type RESMON and press [Enter] to launch the Resource Monitor, then click the CPU, Memory, Disk or Network tabs. Windows 7 will immediately show which processes are hogging the most system resources.

The CPU view is particularly useful, and provides something like a more powerful version of Task Manager. If a program has locked up, for example, then right-click its name in the list and select Analyze Process. Windows will then try to tell you why it's hanging - the program might be waiting for another process, perhaps - which could give you the information you need to fix the problem.

4. RSS-powered slideshows
If even international wallpaper isn't enough, then you can always create a theme that creates a desktop slideshow based on images extracted from an RSS feed. This isn't fully implemented in the beta yet, but Long Zheng has created a few sample themes to illustrate how it works. And Jamie Thompson takes this even further, with a theme that always displays the latest BBC news and weather on your desktop.

5. Restore the Quick Launch Toolbar
The new Windows 7 taskbar essentially works like a giant Quick Launch taskbar that can hold all the shortcuts you need, and that's just fine with us. But if for some reason you prefer the old Quick Launch Toolbar then it only takes a moment to restore.

Right-click the taskbar, choose Toolbars > New Toolbar, type "%UserProfile%\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch" (less the quotes) into the Folder box and click Select Folder.

Now right-click the taskbar, clear "Lock the taskbar", and you should see the Quick Launch toolbar, probably to the right. Right-click its divider, clear Show Text and Show Title to minimise the space it takes up. Complete the job by right-clicking the bar and selecting View > Small Icons for the true retro look.

6. Calibrate your screen
The colours you see on your screen will vary depending on your monitor, graphics cards settings, lighting and more, yet most people use the same default Windows colour profile. And that means a digital photo you think looks perfect might appear very poor to everybody else.

Fortunately, Windows 7 now provides a Display Colour Calibration Wizard that helps you properly set up your brightness, contrast and colour settings, and a ClearType tuner to ensure text is crisp and sharp. Click Start, type DCCW and press [Enter] to give it a try.

7. Multi-threaded Robocopies
Anyone who's ever used the excellent command-line robocopy tool will appreciate the new switches introduced with Windows 7. Our favourite, /MT, can improve speed by carrying out multi-threaded copies with the number of threads you specify (you can have up to 128, though that might be going a little too far). Enter robocopy /? at a command line for the full details.

8. Custom power switch
By default Windows 7 displays a plain text "Shut down" button on the Start menu, but it only takes a moment to change this action to something else. If you reboot your PC a few times every day then that might make more sense as a default action: right-click the Start orb, select Properties and set the "Power boot action" to "Restart" to make it happen.

9. Remove "Send Feedback"
Microsoft has released Windows 7 to get feedback from the public, so it's important to take advantage of that. If you don't like something, or have a good idea, then click Send Feedback and tell Microsoft what's on your mind. You really could make a difference.

Once you've done all that then you might want to get rid of the Send Feedback links on your windows, and this is very easy to do. Just launch REGEDIT, go to HKEY_CURRENT_USER\Control Panel\Desktop, set the FeedbackToolEnabled value to zero and restart your PC. (Set it to 3 if you'd like the Send Feedback links back again.)

10. Use Sticky Notes
The Sticky Notes app is both simpler and more useful in Windows 7. Launch StickyNot.exe and you can type notes at the keyboard; right-click a note to change its colour; click the + sign on the note title bar to add another note; and click a note and press [Alt]+[4] to close the note windows (your notes will automatically be saved).



--------------------------------------------------------

If you like this post please Bookmark it and comment bellow. To recieve new updates and other posts like this please subscribe via RSS or via Email.

Recent Articles:

--------------------------------------------------------

Share/Save/Bookmark

10 new cool Windows 7 tips, tweaks and secrets


Share/Save/Bookmark

Troubleshoot problems, build a repair disc and more

Sure, Windows 7 looks a lot like Vista, but spend a while exploring Windows 7 and you find it's actually crammed with new features.

And while individually these features may seem small, the cumulative effect makes a real difference to your PC productivity.

Following last week's popular list of 10 Windows 7 tips, I bring you a second guide on how to get the most from your Windows 7 installation - here are 10 more Windows 7 tips, tweaks and secrets that you really need to know.

1. Create and mount VHD files
Microsoft's Virtual PC creates its virtual machine hard drives in VHD files, and Windows 7 can now mount these directly so you can access them in the host system. Click Start, type diskmgmt.msc and press [Enter], then click Action > Attach VHD and choose the file you'd like to mount. It will then appear as a virtual drive in Explorer and can be accessed, copied or written just like any other drive.

Click Action > Create VHD and you can now create a new virtual drive of your own (right-click it, select Initialise Disk, and after it's set up right-click the unallocated space and select New Simple Volume to set this up). Again, you'll be left with a virtual drive that behaves just like any other, where you can drag and drop files, install programs, test partitioning software or do whatever you like. But it's still just a VHD file on your real hard drive which you can easily back up or share with others. Right-click the disk and select Detach VHD to remove it.

The command line DISKPART utility has also been upgraded with tools to detach a VHD file, and an EXPAND command to increase a virtual disk's maximum size. Don't play around with this unless you know what you're doing, though - it's all too easy to trash your system.

2. Auto arrange your desktop
If your Windows 7 desktop has icons scattered everywhere then you could right-click it and select View > Auto arrange, just as in Vista. But a simpler solution is just to press and hold down [F5], and have Windows automatically arrange its icons for you.

3. Really remove the sidebar
At first glance you might think Windows 7 has got rid of the sidebar, but don't be fooled. Gadgets are still hosted by the Sidebar.exe process, it's just that this is now launched automatically when Windows boots. If you don't plan on ever using gadgets then you could delete the Sidebar Registry entry at HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run, and recover around 2 MB RAM. That might be a little risky, though, as we're not quite sure what else the sidebar process does in Windows 7. The safest approach is to disable it temporarily by launching MSCONFIG.EXE, clicking the Startup tab and clearing the box next to the Startup entry. Now reboot and test Windows 7 for a day or two to confirm everything is still working, before finally deleting the sidebar Registry entry.

4. Desktop slideshow
Windows 7 comes with some very attractive new wallpapers, and it's not always easy to decide which one you like the best. So why not let choose a few, and let Windows display them all in a desktop slideshow? Right-click an empty part of the desktop, select Personalise > Desktop Background, then hold down Ctrl as you click on the images you like. Choose how often you'd like the images to be changed (anything from daily to once every 10 seconds), select Shuffle if you'd like the backgrounds to appear in a random order, then click Save Changes and enjoy the show.


5. Troubleshoot problems
If some part of Windows 7 is behaving strangely, and you don't know why, then click Control Panel > Find and fix problems (or "Troubleshooting") to access the new troubleshooting packs. These are simple wizards that will resolve common problems, check your settings, clean up your system, and more.

6. Watch more videos
Windows Media Player 12 is a powerful program, but it still won't play all the audio and video files you'll find online. Fortunately the first freeware Windows 7 codecs package has just been released, and installing it could get your troublesome multimedia files playing again.

7. Problem Steps Recorder
As the local PC guru you're probably very used to friends and family asking for help with their computer problems, yet having no idea how to clearly describe what's going on. It's frustrating, but Microsoft feel your pain, and Windows 7 will include an excellent new solution in the Problem Steps Recorder.

When any app starts misbehaving under Windows 7 then all your friends need do is click Start, type PSR and press [Enter] to launch the Problem Steps Recorder, then click Start Record. As they work through whatever they're doing the program will record every click and keypress, take screen grabs, and package everything up into a single zipped MHTML file when they're finished, ready for emailing to you. It's quick, easy and effective, and will save you hours of troubleshooting time.

8. Schedule Media Center downloads
You can now tell Windows Media Center to download data at a specific time, perhaps overnight, a useful way to prevent it sapping your bandwidth for the rest of the day. Launch Media Center, go to Tasks > Settings > General > Automatic Download Options, and set the download start and stop times that you'd like it to use.

9. Open folder in new process
By default Windows 7 opens folders in the same process. This saves system resources, but means one folder crash can bring down the entire shell. If your system seems unstable, or you're doing something in Explorer that regularly seems to causes crashes, then open Computer, hold down shift, right-click on your drive and select Open in New Process. The folder will now be launched in a separate process, and so a crash is less likely to affect anything else.

10. Startup repair
Windows 7 is more reliable than we'd expect from a beta, but you still might run into problems, and the worst might stop it from booting. Even into Safe Mode. And that's very bad news if you downloaded Windows 7, as you've no CD or DVD to use for reinstallation. Which is why you need to click Start, type recdisc.exe and press [Enter] right now, and let Windows 7 build a bootable emergency disc. If the worst does happen then it could be the only way to get your PC running again.



--------------------------------------------------------

If you like this post please Bookmark it and comment bellow. To recieve new updates and other posts like this please subscribe via RSS or via Email.

Recent Articles:

--------------------------------------------------------

Share/Save/Bookmark

How to Add a Program Application to Quick Launch in VISTA


Share/Save/Bookmark
are you tired of searching your desktop for the shortcut? well here is an easy way to allow easy access to your favorite programs through quick launch

Step1
Open Programs menu through the Vista Start Button (located in the lower-left hand side of the desktop.)

Step2
Right-click on the program or application you wish to add to Quick Launch.

Step3
In the resulting pop-up menu, select "Add to Quick Launch".

The program should now appear in the Quick Launch section, located immediately to the right of your Start Button.


--------------------------------------------------------

If you like this post please Bookmark it and comment bellow. To recieve new updates and other posts like this please subscribe via RSS or via Email.

Recent Articles:

--------------------------------------------------------

Share/Save/Bookmark


Share/Save/Bookmark
Do you find your vista computer very slow?Do you have to restart the computer every few hours so you can work productively? well you need not just follow this step by step guide and your computer would run considerably fatser

Step1
OVERVIEW

Vista wants to tell you how your computer should and can work. Speeding your computer up will mean taking control back from VISTA.

By altering settings in VISTA, you can dictate to your computer what you do and do not want to waste system resources on.

Step2
ACCESS PERFORMANCE OPTIONS

START MENU --> CONTROL PANEL --> SYSTEM AND MAINTENANCE--> SYSTEM--> ADVANCED SYSTEM SETTINGS-->PERFORMANCE SETTINGS

1. Open START MENU (Bottom Left of Desktop)
2. Select CONTROL PANEL
3. In the pop-up menu, Select SYSTEM AND MAINTENANCE
4. Select SYSTEM
5. Click ADVANCED SYSTEM SETTINGS (located on left-hand side, under "Tasks")
6. Click SETTINGS (located under the 'Performance' section)

If you find "Let Windows Choose What's Best for My Computer" is selected, you will need to change this. Windows doesn't really want what's best for your computer.

Step3
SELECTING PERFORMANCE OPTIONS (EASY METHOD)

1. Select ADJUST FOR BEST PERFORMANCE
2. Click APPLY
3. Click OK

This should make a noticeable improvement in your computer's performance. However, you may wish to take it a step further, or skip this step altogether. For a more dramatic improvement, skip to the next step.

Step4
SELECTING PERFORMANCE OPTIONS (MOST EFFECTIVE METHOD)

1. Select CUSTOM
2. Scroll through the list of performance options and check only those you want Vista to continue performing. Remember, every option adds to Vista's appearance and takes from Vista's performance.
3. Click APPLY
4. Click OK


--------------------------------------------------------

If you like this post please Bookmark it and comment bellow. To recieve new updates and other posts like this please subscribe via RSS or via Email.

Recent Articles:

--------------------------------------------------------

Share/Save/Bookmark

How to access you vista account without your admin password


Share/Save/Bookmark
Lose your Vista Administrator password? Not to worry. You can easily access Vista and reset your administrator password in a few simple steps.

Step1:
START THE COMPUTER. DO THIS BY PRESSING THE POWER BUTTON. DO NOT WAIT UNTIL WINDOW LOADS TO PERFORM STEP 2.

Step2:
PRESS F8 KEY ***BEFORE*** WINDOWS VISTA BEGINS START UP. THIS WILL PROVIDE A LIST OF OPTIONS FOR HOW TO PROCEED.

Step3:
CHOOSE TO START YOUR COMPUTER IN "SAFE MODE".

Step4:
OPEN THE START MENU.

Step5:
OPEN THE CONTROL PANEL (from within the Start Menu).

Step6:
SELECT "USER ACCOUNTS AND FAMILY SAFETY" IN THE CONTROL PANEL POP-UP WINDOW.

Step7:
CLICK THE "CHANGE YOUR WINDOWS PASSWORD" LINK BENEATH THE "USER ACCOUNTS" SECTION.

Step8:
CLICK "REMOVE PASSWORD". VERIFY AND SUBMIT.

Step9:
RESTART YOUR COMPUTER NORMALLY. DO NOT PRESS F8.

Step10:
TO RESET A PASSWORD, ACCESS THE "USER ACCOUNTS AND FAMILY SAFETY" MENU AGAIN. THIS TIME CLICK "CHANGE YOUR WINDOWS PASSWORD", PROVIDE THE DESIRED PASSWORD, VERIFY AND SUBMIT. THIS TIME, WRITE YOUR PASSWORD DOWN.


--------------------------------------------------------

If you like this post please Bookmark it and comment bellow. To recieve new updates and other posts like this please subscribe via RSS or via Email.

Recent Articles:

--------------------------------------------------------

Share/Save/Bookmark