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I have a PC with Windows 8.

In the last 2 days I have set the clock (the one which appears at the right bottom corner of the desktop) twice, as it paused on a certain hour and (Maybe the hour before I shutdown the PC?).

What can cause that?

Could the BIOS battery be at fault?

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  • 5
    What does "it stops working" mean? What precisely happens or doesn't happen?
    – David Schwartz
    Commented Oct 25, 2013 at 7:37
  • Can you please edit your question and take some time... It doesn't make any sense as it currently stands... What is at the bottom of the screen? -1
    – Dave
    Commented Oct 25, 2013 at 8:18
  • If you suspect the BIOS battery, why haven't you changed it yet?
    – Ƭᴇcʜιᴇ007
    Commented Oct 28, 2013 at 1:05
  • I did. 3 hours after I have sent the question. Just wanted to be sure if there is nothing else to replace.
    – Elad Benda
    Commented Oct 28, 2013 at 12:04
  • See superuser.com/questions/272868/…
    – bwDraco
    Commented Oct 28, 2013 at 15:13

1 Answer 1

Reset to default
1

One can only presume what you might have meant by "clock is stopped", that every time you boot-up after shutting it down completely, the clock perhaps resets (and perhaps resets to 1-Jan-1970). However, while you work on the PC, over time, the clock keeps ticking. You could always manually set the time, but powering-off, you lose the set time.

Highly likely that the CMOS battery for the onboard Real-Time Clock (RTC), managed by the PC BIOS is dead. So indeed, changing the CMOS battery should be attempted first to fix this.

You could also stop the PC boot-up, and enter the PC BIOS, check the time reported there. If it shows 1-Jan-1970 in BIOS, and you set the date/time to current, and shutdown/power-off and reboot, then re-enter BIOS and again find time as 1-Jan-1970, then it is almost certainly the CMOS battery.

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