Windows 7: Hidden Features

1. God Mode It may not be named, but Windows 7's God Mode is indeed universal. It conveniently puts hundreds of settings from all around the operating system all in one place.

2. To turn on God Mode, create a new folder on your desktop--or anywhere you'd like—

3. Name it: GodMode.{ED7BA470-8E54-465E-825C-99712043E01C} 

4. The resulting folder will contain 270 items, representing virtually every configurable option in Windows 7.

Wipe Free Disk Space

It's no secret (or at least, it shouldn't be) that when you delete files or folders in Windows, they're not actually erased—

The space they took up is simply marked as "available for use," which allows the files to be recoverable (with the right software) until they're overwritten with new data. 

There is a utility built-into Windows (even XP Pro and Vista) that will overwrite all the free space on a hard drive, insuring any files you've deleted stay dead. 

1. Launch a command prompt 

2. Type cipher /w:X where X is the letter of the drive or partition you want to wipe. 

3. Press Enter. 

4. Be patient—the process can take a long time if you have a lot of free space.

Name types of Volume

1-  Simple Volume
2-  Spanned Volume
3-  Striped Volume
4-  Mirrored Volume
5-  RAID 5 Volume

What are the terms Partition and Volume

Partition word is used when Basic disk type is used. while Volume word is used in Dynamic disk type.

Whats is Partition table and what is its size

Its a kind of record which hold the information of partition size and its logical allocation.
as there are two types of disks, so Basic partition table hold 64 bytes while dynamic partition table hold 1MB .

Is that possible to extend or shrink Partition "C" while installed windows is unaffected ?

Yes it is possible with 3rd party software as well in WIN7 it has a feature to do so with some limitations.

How to log in on WIN7 through local account when the system is in Domain.

There are two ways to log on with local account

1.     System name\ User name
2.    .\User name
second one is bit easy just type .\ before the user name. eg 

 .\administrator