Hi random_hero-9
First let me observe……. Congratulations on getting your Operating System validated and updated to SP2.. and patched!
(If this is the same system that you posted with previously)
There may be additional Microsoft Updates and Patches that could benefit your machines performance and security…. keep it updated.
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You state that your machine has a 350W Power Supply.
You mention you had this same/similar problems before upgrading your Video Card and adding an additional monitor.
OK.
But that 350W power supply could still be the primary culprit!
And now that you have added an upgraded Video Card and a second monitor, the Power demands have increased.
Consider installing a good 450-550W Power Supply.
Quality in a Power Supply is important. Don't scrimp.
examples:
http://www.newegg.com/Product/Product.aspx…N82E16817103937
http://www.newegg.com/Product/Product.aspx…N82E16817194004
(I don't own, and haven't run either of these, and they are only meant as "possible" examples.)
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You seem to have removed the Roxio utility that may have been creating problems for you previously?
(Probably a good thing)
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Presently, you have quite a load of "unnecessary" applications and processes loading at StartUp, which could be contributing to your machine's performance problems.
Use the Pit Test Results - Windows Results page to begin paring down the excess baggage.
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You also have some "resource hog" applications running.
Zune
Adobe
QuickTime
iTunes
Nero
MSN Messenger
ctfmon (advanced text services)
MS Office
Lexmark ABBYY Fine Reader
None of the above applications are "bad" (with the arguable exception of the Zune interface)
But any/all of them "could" be conflicting with various of your preferred computer use functions.
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You appear to have your machine set up for:
video viewing
music playing
gaming
None of the above are "bad", but all are resource intensive and some "may" be causing interface conflicts.
Zune is widely argued to be a culprit with user-interface conflicts, and the Zune player has an added hazard of automatically sharing media with other Zune capable equipment in the close surroundings.
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Using Peer-To-Peer software is also a possible red-flag.
Fortunately, you do not appear to have any malware infections at this time.
But peer-to-peer can place demands on your machine when you are online, that you might not intend.
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So what to do?
Seriously consider upgrading your Power Supply.
Disable the "unnecessary" applications and processes (from the Pit Test Windows Results page)
Turn-off the list of "resource hogs" except when using them one at a time.
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Do any of the above recommendations specifically relate to the problem of Windows Explorer opening for only a few seconds and then suddenly closing?
Maybe – Probably.
Please complete the above recommendations and then post back with your progress, a description of how your machine is running, and a fresh Pit Test link.
Best Regards