Disable the non-Microsoft services which are running. Sometimes you will get a misbehaving service which slows everything down. Doing this has fixed several slow computers for me. Here's how to do this:
Run MSCONFIG. Go to the Services tab. Click the box to hide all Microsoft services. Once you have done that, all that will be showing will be the non-Microsoft services. Select all of them, then disable them. Click Apply, then restart the computer.
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Are things better? If so, then one (or more) of the non-Microsoft services is the culprit. You now have two choices: leave all of them disabled, or re-enable them one at a time (rebooting each time you enable one), to see which one slows the computer down. (Use MSCONFIG to re-enable them.) If you find any which slow the computer down, re-disable them, and make note of which ones they are so that you won't inadvertently re-enable them in the future. Check them all; there may be more than one misbehaving service.
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Are things better? If so, then one (or more) of the non-Microsoft services is the culprit. Re-enable them one at a time (rebooting each time you enable one), to see which one slows the computer down. (Use MSCONFIG to re-enable them.) If you find any which slow the computer down, re-disable them, and make note of which ones they are so that you won't inadvertently re-enable them in the future. Check them all; there may be more than one misbehaving service.
If disabling the non-Microsoft services didn't fix anything, go back into MSCONFIG and re-enable them all. You may need them running, because they may provide essential functionality, such as anti-virus monitoring.
Disable the non-Microsoft services which are running. Sometimes you will get a misbehaving service which slows everything down. Doing this has fixed several slow computers for me. Here's how to do this:
Run MSCONFIG. Go to the Services tab. Click the box to hide all Microsoft services. Once you have done that, all that will be showing will be the non-Microsoft services. Select all of them, then disable them. Click Apply, then restart the computer.
Are things better? If so, then one (or more) of the non-Microsoft services is the culprit. You now have two choices: leave all of them disabled, or re-enable them one at a time (rebooting each time you enable one), to see which one slows the computer down. (Use MSCONFIG to re-enable them.) If you find any which slow the computer down, re-disable them, and make note of which ones they are so that you won't inadvertently re-enable them in the future. Check them all; there may be more than one misbehaving service.
If disabling the non-Microsoft services didn't fix anything, go back into MSCONFIG and re-enable them all. You may need them running, because they may provide essential functionality, such as anti-virus monitoring.