Defragmenting the hard drive to improve performance

The Disk Defragmenter in Windows 7 is better than its predecessors and it's a good tool for improving system performance. How does it do it?
Well, you must realize that every time you save, change or move a file on your hard-drive, there's a good chance that the file won't be written in the same place, so you end up with the same file saved in different places. Then next time you open that file (which can be a document, mp3 or movie), your system will have a hard time opening it from several places. The Disk Defragmenter takes files and puts them in the same place, resulting in better response times from the system.
Source and video: Defragmenting the hard drive to improve performance

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Windows Vista's super hidden files

This option is intended for advanced users. It's invaluable when removing viruses or worms from your system. But be aware, this could also be very damaging for your system, so be sure you know what you're doing before tampering with these super hidden files! Video here!

Hack your Windows.com - New!!! Windows 7 tutorials!!!

Hack your Windows.com - New!!! Windows 7 tutorials!!!

The Administrator account in Windows 7 - Windows 7 Tips - HackyourWindows.com

By default, the Administrator account is disabled since Windows Vista, also in Windows 7. That's because many people forgot or ignored to set a password for it in Windows XP, thus making the system vulnerable to certain threats. This is how to enable the Administrator account in Windows 7 and eventually rename it for security reasons.
The Administrator account in Windows 7 - Windows 7 Tips - HackyourWindows.com

Menus are gone in Vista? WHERE?

This is a little tutorial on how to get menus back under Windows Explorer. Nice stuff, trust me. View it!

Sticky Notes from Windows 7 - Better?

Compared to the version from Windows Vista I think it's a lot more customizable and fun. We've found a video about it on http://www.hackyourwindows.com if you're interested. Cheers!