Please note that there are some programs that can affect the computer's "Windows" clock. Consider doing a "Clean" boot of your system (no start-up programs) and check the clock. If he clock works with the "minimal" Windows 7 "start-up," you would then
need to "re-enable" the "Start-up" programs, one at time. Then, you will continue to check to see when the clock starts to "slow" down.
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