Windows 7: windows explorer constantly shuts down

pls help. i was downloading a video thru real player sp, all was fine at first but then when some downloading error occured this problem started happening. i rebooted, and deleted the unfinished download file. then downloaded the file again and all was ok. but now every now and then my windows explorer shuts down all of a sudden. and whenever i open my vdeos folder it takes a long time for them to load those thumbnail icons. what seems to be the problem with my unit? by the way, when i tried to delete the unfinished download file, i cant access the realplayer downloads folder coz the windows explorer keeps shutting down. i deleted the file through tune up utilities 2011. pls help.

It sounds to me like you have a bad codec on the system.

Try downloading and installing an newer version of Real Player that may address this problem. If that fails, then perhaps a third-party codec pack will do. The Shark007 Windows 7 Codec Pack is the only 100% compatible Windows 7 codec pack you'll ever need.

And if you still have a problem, try this:

1. Click the Start Orb
2. Type "cmd" in the search box (without quotes)
3. Right-click "Cmd" in the search results, then click "Run As Administrator"
4. In the Command Prompt, type "sfc /scannow" (without quotes) and press <ENTER>

I already tried using SHARK007 codec. i uninstalled my KLite MCP then installed shark. but after an hour or so, while i was watching some videos, my unit went haywire all of a sudden and this message like "memory dump" came up and there was some numbers going on my screen and a very nasty sound came along with it. so i turned off my laptop right away then turned back on in safe mode and then rebooted. then i uninstalled shark and reinstalled KLite, and everything was ok agen. that was about 3 months ago by the way.

what will this do?

1. Click the Start Orb
2. Type "cmd" in the search box (without quotes)
3. Right-click "Cmd" in the search results, then click "Run As Administrator"
4. In the Command Prompt, type "sfc /scannow" (without quotes) and press <ENTER>

The SFC command is the System File Checker. running "sfc /scannow" in an elevated command prompt will tell it to scan your important system file for inappropriate changes or corruption, and will offer to fix any errors found.

Ok. will try this one when I get home from work. Hope it works. Tnx mate. =)

Dzom, jz finishd doing the cmd sfc thing u mentioned earlier.
the result was this:

"Windows Resource Protection did not find any integrity violations."

what's the next move dude? so there isn't any bad codec in the system. is there another way?