|You can't close explorer.exe without loosing your desktop, and explorer should have hardly any usage unless you are indeed doing something.|
Arrange the tasks by CPU usage (click CPU tab from task manager), SIP (System Idle Process) should always command the majority of your CPU usage, 95% average when doing nothing.
What is your SIP showing and what other tasks are listed below that and what % CPU usage are they commanding?
You'll be able to find the culprit, also their are applications known as TSR's (termiate and stay resident), this programs like AOL, real player and others that run in the background even after you've closed them or load themselves at startup even without opening them.
I believe jam already hinted how to take care of those.
- Below are tips that will help you -
Without adding RAM, you can significatly improve your system's performance with the things listes below.
- Always have Up-to-date Virus engine and Scan periodically or as needed.
- Spybot, Ad-Aware, Spywareblaster, CrapCleaner are all things you should never be without.
- Check your startup items (msconfig) for TSR's or memory hogs and disable them.
- Make sure Windows registry is uncluttered.
- Empty the Recycle Bin
- Delete .tmp files, run CHKDSK,and DEFRAG as needed.
- Delete files that begin with a tilde. When cleaning the system of garbage files, check for any files beginning with a tilde (~). Make sure all your applications, such as word-processing, spreadsheet, and graphics programs, are closed first, since sometimes the temporary file you are currently viewing uses a tilde. If the applications are closed, the tilde files can be deleted.
- Delete old .zip files that are'nt needed.
- Delete .chk files, and switch the swap file. If you've got permanent swap files, it's sometimes a good idea to set the swap file back to temporary and then permanent again to clean out any garbage.
- Check browser history and cache files. Check that the user history files and Internet cache settings are set properly (cache size). Delete the cache files and history files then reset the history files to no more than three days unless you specifically need to store that information
longer. By freeing up the cache, downloads from the Web actually speed up since there is more space available to store the temporary files. Clean out Windows temporary Internet files.
- Update drivers as needed. Make sure you've installed the latest drivers for your devices.
Leadtek sucks BIG TIME