Win7 system boot display Cmos checkup error how

  

win7 system boot display Cmos checkup error how it happened

1, turn off the computer, unplug the power plug, open the host chassis;

2. Use a flat-blade screwdriver to pry the CMOS battery and install a new one. Note that the battery is on the positive side;

3. Turn on the power and restart the computer.

windows7 tutorial

windows8 tutorial

windows10 tutorial

Copyright © Windows knowledge All Rights Reserved