Very Slow Windows (CPU @ 100%)

doodah · 17 Dec 2007 at 15:41

Been using my 2nd PC recently, its not a super computer but it has been really slow today. Was organising my start menu folder and it ridiculous! It would up to 5 seconds to highlight a folder or shortcut, took me about 20mins to do a <5min job. Looked at task manager and the CPU was constantly at 100% - have NOD32 and S S&D running in the back ground, none of which said there was a problem. Anyone have any ideas?

Running Vista 32bit/AMD 3200+/1GB

HEADRAT · 17 Dec 2007 at 15:47

So what process was using all the CPU?

blastman · 17 Dec 2007 at 15:56

how old is the OS installation??

Have you tried removing the temp files and increasing the page file?

doodah · 17 Dec 2007 at 18:05

53 processes were running, the install is only a couple of months old. Even got Readyboost running.

HEADRAT · 17 Dec 2007 at 18:06

But which process was sucking all the CPU?

This can be useful:-

http://www.microsoft.com/technet/sysinternals/ProcessesAndThreads/processmonitor.mspx

HEADRAT

doodah · 17 Dec 2007 at 18:53

Hhhmmm it seems to have vanished! Tried doing the same task but CPU useage has gone right back down, weird.

bledd · 17 Dec 2007 at 20:11

perhaps vista was doing one of the following..

indexing
windows defender real-time scanning (disable this to get a speed boost, especially on old pc's)
superfetch
defrag
windows updates

doodah · 18 Dec 2007 at 02:45

This is getting strange, i know Vista can fanny about with transfering files but this is SLOW. Tried copying some files from a drive to flash (which some of is been used for Readyboost) and it was going at 200k/sec. Thought maybe because drive was in use (downloading something onto it) so tried from C: to flash and its settled at 67k/sec

. This is a 4GB Corsair Voyager. Is it because it is been used for readyboost?