Adding Open With to the Right Click in the Explorer
To add the option Open With when you right click on a file in the Explorer:
1. Start Regedit
2. Go to HKEY_LOCAL_MACHINE \ Software \ CLASSES \* \ shell \ openas \ command
3. If this key isn't there then just create it
4. Give it the value of C:\WINDOWS\rundll32.exe shell32.dll,OpenAs_RunDLL %1

Automatically Deleting a Registry Key
Normally you cannot automatically delete registry keys from reg file. But there is a way...
Simply include a minus sign inside the left bracket before the main key.
For example.
If you want to delete the key HKEY_LOCAL_MACHINE \ Software \ Microsoft \ Office \ 8.0 \ Common \ Assistants, your regfile would simply look like:

REGEDIT4
[-HKEY_LOCAL_MACHINE\Software\Microsoft\Office\8.0\Common\Assistants]
This would delete that key and any below it.

Fixing no AutoRun for CDs
If your CDs have stop starting automatically, and you have checked everything else:
1. Go to HKEY_USERS\.Default\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
2. The value for NoDriveTypeAutoRun should be set to 95 00 00 00

Renaming the File System Profiles
In the Control Panel / System / Performance / File System, you can select either Desktop Computer, Mobile or docking system, or Network Server.
You can change these labels to something more descriptive:
1. Start Regedit
2. Go to HKEY_LOCAL_MACHINE / Software / Microsoft / Windows / Current Version / FS Templates
3. You can change the text that appears under each key

Sticky Menus
Normally when you move the mouse over the Start Menu / Programs, it will automatically cascade and show the submenus.
If you want them to open only when you actually click on them:
1. Start Regedit
2. Go to HKEY_CURRENT_USER \ Control Panel \ Desktop
3. If if it not already there, create a string called MenuShowDelay
4. Give it a value of 65534