If you’re prone to coming up with crazy passwords and then absolutely forgetting them days later, the first thing you should do with a new Windows 7 computer is create a password reset disk. That way, you don’t have to format your entire computer if you can’t log in!
Create Password Reset Disk in Windows 7
Sometimes the MBR (Master Boot Record) in Windows can become corrupt and cause scary errors like “Operating System not Found”. Luckily, it’s usually an easy fix since you just have to re-write over the corrupted MBR. Check out the post below for steps in Windows 7.
Fix MBR in Windows 7

If you want to know how to get the most of Windows 7’s task scheduler, then this series of articles is what you need. It starts with an introduction of the tool, its interface and main features. The next article shows how to work with the basic task wizard while the last goes into advanced task scheduling and editing all possible properties of a task.
First Steps in Working With the Task Scheduler
How To Create a Task With the Basic Task Wizard
Advanced Users – Task Creation With Task Scheduler
This easy to follow tutorial by Microsoft shows you how to use your own pictures as desktop wallpaper, create custom screensavers even sound and color schemes.
Create a Win7 Theme in & Steps

Even if you have a big hard disk, it’s still a good idea to run a disk cleanup from time to time. Eliminate all the junk, temporary files, unused restore points, etc.
To learn how to use Windows 7’s Disk Cleanup tool and its new features, check this tutorial.
Free Up Wasted Space with Disk Cleanup

Did you know you can mount and edit ‘.vhd’ (virtual hard disk) images with Windows 7’s Disk Management tool?
If you are working with lots of virtual images, then this tip might come in handy.
Disk Management – How to Mount and Unmount VHD Images

Sticky Notes is one of the underrated applications in both Windows 7 & Windows Vista. If you want to know what it can do and some cool little tips on how to use it, check out these two articles.
How to use Sticky Notes
Useful Tips & Tricks for Sticky Notes

For those of you having a home network with both Mac OS X and Windows 7 computers, these guides will be truly useful.
Access Windows 7 Shared Folders from OS X via a Home Network
How to Share OS X Folders with Windows 7

This useful tutorial shows how to work with the Disk Management utility so that you can do whatever you want to your partitions: create new ones, delete existing partitions, shrink or extend partitions, changed drive letters and labels, etc. The tutorial works for both Windows 7 and Windows Vista.
How to Manage Your Disks using the Disk Management Utility

Preme is a free app which enhances different aspects of Windows 7. It ads a host of new geeky features such as: double ESC to close the active window, docking of windows on either side of the screen, adds a window switcher corner on the top-left side of the screen, etc.
Preme for Windows 7