I have the same problem, but I don't think it's a virus. It started today. I was running a bit torrent download over night while I had some batch video encoding going as well. Sometime about 10 minutes after I left, both the bit torrent download and the encode froze (I know this from the encoding log). When I got back to it this morning, I noticed that my CPU usage was maxxed out and that it only returned to normal when I ended the bit torrent exe. I restarted then because a few things weren't working properly. When I was back in windows, my cpu jumped to max after I logged in and it was because of svchost.exe. I ended it and the error telling me that the RPC buffer had been broken came up so I'd have to shutdown came up. By the way, you can get past having to shutdown by typing 'shutdown /a' in a command promt.

Anyways, I have Norton Antivirus with my definitions up to date and it hasn't detected a virus lately. I also have a router so the blaster worm wouldn't be affecting me. However, Norton Antivirus doesn't work now. It appears that it's working, but it doesn't actually do anything. I can't change any of the options, the system status never actually refreshes, and I can't scan for viruses. I don't think that it's possible for a virus to come in on part of a bit torrent download and infect a system without being executed either.

So does anyone know what this could be outside of a virus? I could run the windows system restore and just go back to two days ago, but I don't know that I trust it entirely because of other recent experiences with "helpful" automated microsoft utilities.

http://www.daniweb.com/techtalkforum...p?t=154&page=3

Hi I have had the same prob,,,,u may find that this will work http://www.annoyances.org/exec/forum...00/n1054833166 It worked for me

I just spent an hour with Microsoft Technical Support - what resolved my problem through trial and error of unchecking services in msconfig - was to go into msconfig, services, and see if HID Input Services is checked. Stands for Human Interface Display. Uncheck it and reboot. It worked for me after days of trying to figure out what was going on with svchost.exe!

SvcHost.exe using 100% CPU (processor) on a Windows XP SP2 machine:

Running “Tasklist /Svc” from a command line will show the instances of SvcHost.exe and what is running under each instance of SvcHost.exe (there should be about 5 instances of SvcHost.exe running on an XP SP2 machine).

You can go into the Registry and see all the things running under SvcHost.exe by looking in HKEY_LOCAL_MACHINE\ SOFTWARE\ Microsoft\ Windows NT\ CurrentVersion\ SvcHost .

The way I found and fixed this problem was by downloading Process Explorer (from SysInternals, which is now owned by Microsoft). It showed me that WuAuClt.exe was running under the instance of SvcHost.exe that was gobbling up my entire processor. WuAuClt.exe is the Windows Update Automatic Update Client.

After doing some web searching, I found that in many cases the problem is because of Microsoft Update (Microsoft Update handles all MS products, whereas Windows Update handles only the Windows OS). To turn off Microsoft Update, go to http://windowsupdate.microsoft.com, choose “Change settings” on the left hand side of the page, then at the bottom of the page choose “Disable Microsoft Update”.

Please also look at MS KB article KB916089 for some related information that may be helpful. I downloaded this hot fix and it made no difference on my system.