Here is a useful trick to silence some of the annoying sounds on your computer.
1. Go to Control Panel and look for the "Sounds" item.
2. Navigate to the “Sounds” tab.
3. Now from under “Sound Scheme:” select “No Sounds” > Click “Apply” > “OK”.
You may keep some of your favorite sounds turned on if you want, but sounds played during the Windows 7 start up, shutdown, Logon, logoff, start navigation etc should be set to none if you want some real speed boost.
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