Perform an Automatic Repair You can also use the Start-Up Repair tool to fix issues preventing Windows from booting correctly. Shut down your computer and follow the steps below.
Reset BIOS to Factory Default Performing a BIOS reset will erase all information saved in the CMOS.
Replace the CMOS Battery
Check for Hardware Damage
When the computer starts, one of the following error messages is displayed: BIOS ROM checksum error. Corrupted system CMOS checksum – default configuration is used. Press
This will restore certain checksum values ??and fix a certain CMOS error. Press F1 or F2 next to the error page to go to the main BIOS setup page and select Load Defaults, Load Set Defaults, or another option to restore BIOS settings to default. On some computers, you may need to press another key (usually Del or F8) to access the Windows BIOS setup page.
The error should occur when the CMOS is running on battery or the BIOS file is corrupted. Also, when the BIOS crashes, viruses may want to change the value of BIOS personal information, causing the checksum verification to fail. CMOS is part of the motherboard.
What is CMOS checksum error defaults loaded?
CMOS Checksum Error – Defaults Loaded An invalid CMOS checksum causes the device’s default configuration to be rearranged. A checksum error may indicate CMOS corruption. This error may be caused by a weak WAN. Check the battery and replace if necessary.
What is the cause for the error CMOS checksum error?
A CMOS checksum error occurs when the computer cannot read this data. Also, one of the most common causes of a checksum error is the simplest solution. The wide array feeding the CMOS is a big battery, a clock, and it can run out. When the battery life is exhausted, CMOS can no longer sell information.
How do I fix CMOS checksum error Windows 10?
How to fix reverse CMOS checksum in Windows 10? Restart your computer. Be sure to replace the battery. Repair the CMOS battery terminals. Reset BIOS. Update BIOS. Replace the corresponding motherboard.
How do I fix CMOS checksum error in Windows XP?
To learn how to fix CMOS checksum errors, restart your computer. A normal reboot usually creates almost no new checksums and fixes our error. Download and flash the BIOS update. Download the update from the motherboard manufacturer’s website. Reset BIOS. Replace CMOS battery. Contact a good professional or computer repair technician.
Ermias is a tech writer with a passion for helping people solve Windows problems. He loves to write and share his knowledge with others in the hope that they can benefit from it. He’s been writing about technology and software since he was in college, and has been an avid Microsoft fan ever since he first used Windows 95.