Computer restarting again and again and shows a blue screen with "Beginning dump of physical memory." Also when i scan the system using kaspersky internet security antivirus it got restarted and i couldn't complete the scan process. The error reporting window always appear on my screen.

What version of windows is this? This is a catastrophic registry failure. You may have to reinstall the operating system.; .

Hi...

There are two thing you should try..
Check the memory.
Reinstall the OS.
Thanks

Kindly rate
Smith

This could be pretty complex. The ATAPI.SYS file controls the Hard Drive and CD-Rom Drive. I would recommend reading this MS TechNet article:
http://support.microsoft.com/kb/822051/ The article says that it's not uncommon for the problem to be caused by faulty memory or by problems in the mass storage controller subsystem, which makes sense since atapi.sys (a mass storage controller system file) is noted.
If you have multiple memory cards in the machine, it might not be a bad idea to take one out and try again. If the fails, keep swapping out memory cards until we either solve the problem, or elimite that as a cause.

Helo sir

I can not download windows vista theme

This happens when knowingly or unknowingly an memory that is not to be accessed is accessed or a electrical violation of a port of the computer occurs...

As with any blue screen, this is an operating system error in which a driver or program has overstepped it's boundries by writing into an unauthorized section of the memroy, therefore causing the memory dump. You will need to run a system repiar or reload with your recovery disc or operating system disc in order to cure the problem. Start with the repair, if the rogue still persists, then you will need to wipe the hard drive and reload the operating system.

this is the'blue screen of death..the Dell model is usually on a tag somewhere on back. supply that, and perhaps you can gain assistance here(I'm Dell Certified going back in time, by the way)

Depending on what operating system you are using, I suggest repairing the operating system. For windows xp here is a guide that you can follow http://www.michaelstevenstech.com/XPrepairinstall.htm.

For windows vista
http://www.bleepingcomputer.com/tutorials/tutorial148.html

well..you sound as though there is too much on the disk..

Just use ORIGINAL OS CD and repair OS everything will work fine!