Cannot boot after update

  • Thread starter Thread starter Guest
  • Start date Start date
G

Guest

bRecently installed the February update fm Microsoft but did not reboot right
away. I later shut down the PC, and got a screen offering different shutdown
options from the norm. I opted to shut down, and when I went to reboot later
I got the following message: "WARNING ERROR 0251: SYSTEM CMOS CHECKSUM
BAD-DEFAULT CONFIGURATION USED PRESS <DEL> TO SETUP, <F2> TO RESUME" Right
now I have the errant drive set as a secondary drive in another computer,
where I can see, read and access the files with no problem. How to I fix this
thing so it is again bootable and I do not lose any data?
 
It's possible the CMOS batter is failing. I'd start by replacing the batter
and see if that resolves the issue as these batteries are quite inexpensive.
Check your owner's manual for information about the proper replacement
battery or check the website of your computer manufacturer as they may have
the information there.
 
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