139. Restoring Access to CD ROMs

If you removed CD Burning software, or for some other mystical reason, can not longer access your CD ROM's,
in most cases following registry keys needs to be deleted:

Locate and delete the UpperFilters and LowerFilters values under the following key in the registry:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}

40.How to avoid autoplay of CD ?

Way I like best.Hey this time no registry trick even though there are ways in registry to do it. In earlier operating systems only those CD that had autorun.inf file in their root directory were able to execute on its own but with advent of WINDOWS XP it has become possible with just about anything. Well sometimes it is good but there are other times when you want to avoid this part of automation. What would I do. Simply press SHIFT key when you enter a CD in your CD drive. It won't Auto play. For those of you, who do want a registry hack. Here it is: Open Registry and navigate to [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer] and look for key "NoDriveTypeAutoRun" and set its value to 185 (decimal). This would stop autoplay.

26. How to create a XP Bootable Disk?

Go to window explorer and right click on the floppy
drive. Select checkbox for Create an MS-DOS startup
disk and format the disk. This is all that is needed to
create a MS-DOS startup disk in Windows XP