SOME TRICKS

Allowing Network Access with Blank Passwords (XP and Vista)

Although you can log in locally without a password, by default, WindowsXP Pro does not allow network users to access the computer without a password. Typically you will receive an Unknown error 31 if this is the case.
To change this setting:
Run gpedit.msc
Go to Computer Configuration / Windows Settings / Security Settings / Local Policies / Security Options
Double click on Accounts: Limit local account use of blank passwords to console login only
Disable this option
Disabling the F3 Search Key

If you want to disable the ability to use the F3 key from either the Windows Explorer or Internet Explorer
Start Regedit
Go to HKEY_CURRENT_USER\Software\Policies\Microsoft\Internet Explorer\Restrictions
Create a Dword value called NoFindFiles
Give it a value of 1
Reboot
Preventing Changes to File Associations

You can prevent users from changing associations via Windows Explorer's Tools / Folder Options / File Types tab.
Start Regedit
Go to HKEY_CURRENT_USER \ Software \ Microsoft \ Windows \ CurrentVersion \ Policies \ Explore
Create REG_DWORD data type NoFileAssociate
Give it a value of 1
Submitted by Paul Barker
Locking File Associations

If you have your file associations the way you want for a particular file type, you can remove it from the list that gets displayed in the Folder Options / File Types screen
Start Regedit
Go to HKEY_CLASSES_ROOT
Scroll to the file association you want to lock.
In the right panel, create a new Binary value
Call it EditFlags
Give it a value of 01 00 00 00
Now when you go to the Folder Options / File Types screen, you won't see that file type listed.
Submitted by Paul Barker

Turning off System Beeps

If you want to turn off all system beeps (like the ones that go through your computers' internal speaker):
Start Regedit
Go to HKEY_CURRENT_USER\Control Panel\Sound
Edit the key Beep and give it a value of No
Download reg file

Changing the Location Of Special Folders

You can modify the registry to change the location of special folders like:
My Documents
Favorites
My Pictures
Personal
Start Regedit
Go to HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders
Double click on any locations you want to change and alter the path
Logoff or restart for the changes to go into effect
Note: TweakUI from Microsoft will allow you to make these changes from a dialog box as well

Deleting Specific Registry Value

In a previous tip, Automatically Deleting a Registry Key, it was mentioned how to remove an entire registry key.If you want to simply remove a specific value within a key, use the syntax below:
[Registry Key]"value"=-
For example:
REGEDIT4[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] "MSConfig"=-
would delete the value MSCONFIG.
Submitted by Brent Towsley

Setting the Recycle Bin to Always Delete

You can set the recycle bin to always delete items (like holding down the shift key when dragging files to the recycle bin)
Start Regedit
Go to HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Explorer \ BitBucket
Set the key NukeOnDelete to 1
Download reg file

Setting the Internet Explorer Home Page

If you want to set the home page used by Internet Explorer through the registry
Start Regedit
Go to HKey_Current_User \ Software \ Microsoft \ Internet Explorer \ Main
Give the Start Page key the string value you wish set as homepage
Submitted by Austin Henderson

Preparing to Move Hard Drive to Another Computer

To remove the devices from device manager when taking a HD from one computer to another,simply:
Run Regedit
Go to HKEY_LOCAL_MACHINE\ and delete the Enum section
This removes all of the hardware specific settings
Submitted by Lee Berry

Comparing Registries

While working with changes to your system, you might want to see what is changing in your Registry.Since you can export it to a text file, the steps are fairly easy
Start Regedit
With the very top level select - My Computer, on the Toolbar select Registry / Export Registry File
I usually save it to the root of the C: drive with the name before (you don't need to add an extension)
Make the change to your system
Go back to Regedit
Press F5 to update it
Export the Registry like step 2
Name the file after and have it go in the same directory
Open up a DOS window
Go to the directory where the two exported files are
Enter FC before.reg after.reg > diff.txt
Then you can edit diff.txt with your favorite text editor.
Note: I do the last steps so often I have a simple batch file already set up.