Windows Explorer in Windows 7 64 bit restarting a lot

[A Twig]

Not really sure why, initially it didn't like Steam at all, but now seems fine with that. Every now and then though it seems to take a dislike to a program and Com Surrogate and Windows Explorer will require restarting every minute or two. A restart of the PC seems to cure it most times though. Is it memory? I know 2Gig aint huge, but I haven't been running anything more mental that firefox/office/iTunes, no gaming etc yet

Also there seem to be a hell of a lot of updates, it's constantly telling me its found new ones! Anyone else noticed this?

[Snokio]

I too am running W7 64bit (Premium), but not had this problem, didn't have that many updates either, the only thing I found was this
 
Steam /valve games (CSS and NT) keeps coming up with 'hl2.exe has stopped working' sometimes it worked, sometimes it didn't, looks like it was associated with windows firewall, I switched the blocked HL2 stuff to unblock etc, which worked initially, but after a reboot, same error, ended up disabling Windows firewall altogether which worked and now run a aftermarket Security suite, so far so good

[Jabbs]

Could be that there is a program attached to the shell (anti virus or even a virus itself?) that explorer is having issues with?  Is it a new install?

[Tutonic]

I'd go with Jabbs' suggestion - I've seen those 'COM Surrogate' errors before, specifically when a program has inserted something into the 'right click' menu in Explorer (ie, an anti-virus program lets you right click on a folder to do a scan).

The other possible cause is a bad/missing codec. When Explorer tries to create thumbnail previews for video/music files, sometimes a bad codec can cause it to crash - or in Vista/7, COM Surrogate falls over. Have you tried installing/re-installing Xvid, Divx etc?

[Snokio]

I got a update for explorer today, maybe that might fix the problem

[Jabbs]

You could try to see if you can force teh crash by doing certain things such as right click different files and folders to see if one of them makes it crash.

[A Twig]

Since the last lot of updates it hasn't happened again, we'll see....