I noticed about a week ago that my windows clock is losing time. I leave my PC running and it loses time so it is not the CMOS battery. I have tried syncing the time to both time.windows.com and time.nist.gov but after syncing it quickly begins losing time. I can easily tell that time is being lost because of the lag between my minute bars on my chart and the clock. I am sure that my clock is off and my charting is correct and not lagging in case anyone was thinking that. Any suggestions would be great.