First of all, I'm currently using a Swedish version om MS Windows 7 Home Premium 64-bit SP1, so if my translations of error msgs and such are incorrect, I apologize.
To the problem: Some time ago my TaskMgr stopped working. It starts, and then almost instantly i get "Task manager has stopped working" - "Task manager has stopped working. A problem made the program stop working correctly...." and I'm forced to close it.
This happens in safe-mode, and "sfc /scannow"-command finds no problems om my computer. No viruses was found with Malwarebytes, McAfee or MS Security Essential. I filtered "taskmgr.exe" in Sysiniernals Process Monitor, I have no idea if this is relevant but there were quite a few post with result "NAME NOT FOUND" and "FILE LOCKED WITH ONLY READERS"
Also ran CCleaner in a last desperate attempt to fix this problem - to no effect.
I used windows update a few times after this problem started... I have NO idea what to do, and since I may have misplace my OS-install-DVD/CD reinstalling windows may be a problem.
Please help me!
Additional information: Win7 Home Premium 64-bit SP1 Acer Aspire 7741 Intel Core i3 CPU M 380 @ 2,53GHz