Hi,
I have Windows XP SP3 and last couple of days I have been having this weird error: when I try to open a file (notepad, Word file, etc.) Windows gives me and error message which says: "Insufficient system resources exist to complete the requested service". After that message, screen goes weird, and I can barely use windows explorer, other programs doesn't work and I end up restarting my PC, after restart PC seems fine until it happens again. It usually happens a few hours after I have booted my PC.
Today I scanned my PC with Avast antivirus (found no viruses), cleaned registry and temp files with CCleaner, defragmented my both drives with Diskkeeper and after all that it happened again.
What could be the problem ? Is it serious ? I am a bit afraid this error could be a beginning of an end to my PC, as my system is old. But my PC has been running quite smoothly over years and only big problem I had with it was a root kit virus 3,5 years ago. My system info is below.
My system is 5,5 years old, it's specs are: 2.8 GHz dual core intel Pentium D processor, 2,5 GB RAM ( 2 GB stick is 3.5 years old), 2 HDDs - one 250 GB Samsung, other is 640 GB WD (2,5 years old), GPU is Ati Raddeon 4670 1GB (1,5 years old). PC case is a bit hot: temp rarely drops below 40 C, but CPU temp never reaches over 65 C, and GPU is never over 75 C, both HDDs are almost always in 45-49 C range, but never over 50 C.
Windows XP have been installed 3,5 years ago.





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