System Restor Problem

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Can somebody help me on this? On my pc, I cannot create restore points. I noticed a few days before that the automatic creation does not work already as I boot my pc into safe mode. As I try to create a restore point, a loading bar displays “Creating a restore point..”. After a few minutes, an error message displays: “ The restore point could not be created for the following reasons. The creation of a shadow copy has timed out. Try again this operation (0x81000101). Please try again.” Is this something to do with my installers, CPU usage, hardware malfunctioning? Here are some of my pc’s system details: OS - Windows Vista Ultimate SP1 32-Bit; CPU - Intel Core 2 Quad 2.4GHz (Q6600); RAM - 4GB DDR2; MOBO - Asus P5K-Premium.

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If you’re pc is showing symptoms like these:
-Your system becomes sluggish and you find that something called svchost or dllhost is taking nearly 100% of your CPU.
-Your system reports that svchost has performed an illegal operation and will be terminated. After that various things fail to work properly, if at all.
-After you log in, your system automatically reboots in one minute.
It's almost certain that you either have a virus or your system is currently vulnerable to a particular type of exploit known as the "RPC buffer overflow".

Take a look on this link. This should help you on your problem. It has definitions and remedies to consider. I downloaded some for myself for future references. I strongly recommend you visit this link. Svchost and Svchost.exe - Crashs, CPU maximization, viruses, exploits and more. - Ask Leo!

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Furthermore, you also need this anti virus software (SAV32CLI) to remove malicious and unwanted files. Removing malicious files with SAV32CLI