Loading Setup Defaults from BIOS menu and physical CMOS reset can be used for the same purpose, but risks differ depending on device structure. Default settings can change boot mode, disk controller, Secure Boot, TPM, virtualization and XMP/EXPO settings.
Load Setup Defaults?
Load Optimized Defaults
CMOS checksum error
Time-of-day not set
BIOS settings have been reset
Loading Setup Defaults from BIOS menu and physical CMOS reset can be used for the same purpose, but risks differ depending on device structure. Default settings can change boot mode, disk controller, Secure Boot, TPM, virtualization and XMP/EXPO settings.
Do not follow the general internet recipe without recording the brand, exact model, motherboard revision and BIOS version.
Store Boot Mode, disk controller, Secure Boot, TPM, XMP and virtualization status with photos or reports.
Don't do risky firmware without a BitLocker key, Windows recovery USB, stable power and a fallback plan.
Do not change more than one BIOS setting at the same time; Verify Windows and hardware status after each step.
Do not short circuit jumper pins without motherboard manual.
Meaning: Firmware has reverted to default settings.
Possible cause: CMOS battery, update or manual reset.
Meaning: CMOS setting integrity invalid.
Possible cause: Weak battery or cut reset.
Meaning: Firmware time has been reset.
Possible cause: CMOS battery weak or removed.
Meaning: Boot or storage mode changed.
Possible cause: UEFI/Legacy or RAID/AHCI mode reverted to default.
Meaning: Memory profile reverted to default.
Possible cause: Normal reset behavior.
Meaning: VT-x/SVM may be disabled by default.
Possible cause: BIOS reset.
Meaning: Security settings reverted to default.
Possible cause: Firmware reset policy.
Meaning: Memory training, incorrect jumper, or hardware contact.
Possible cause: Task error or waiting time.
No records matching this expression were found.
Get-CimInstance Win32_BIOS | Select-Object Manufacturer,SMBIOSBIOSVersion,ReleaseDate,SerialNumber | Export-Csv .\bios-reset-oncesi.csv -NoTypeInformation -Encoding UTF8
Records firmware information before reset.
msinfo32
Displays BIOS Mode and Secure Boot State values.
Get-PnpDevice -Class SCSIAdapter,HDC | Format-Table Status,FriendlyName,InstanceId -AutoSize
Helps to log the RST/VMD/AHCI controller information.
manage-bde -status C:; manage-bde -protectors -get C:
Displays the encryption and recovery keys before reset.
Get-CimInstance Win32_Processor | Format-List VirtualizationFirmwareEnabled,VMMonitorModeExtensions
Displays the virtualization status before reset.
Get-Date; w32tm /query /status
Windows time and time service status is shown.
The least physically risky method is Load Setup/Optimized Defaults.
Jumper, button, or battery method should only be applied according to the motherboard guide.
Removing internal battery and RTC battery may require service procedure.
The Salt BIOS setting usually does not delete files; however, the boot mode, disk controller, TPM Clear or incorrect installation procedures may affect Windows access and encryption keys.
Secure Boot, TPM, BIOS updates, and some firmware changes can change the security measurement and Windows may request a recovery key at startup.
Manufacturers may offer the same feature under different menu names and locations. The exact step must be verified based on the device's full model and BIOS version.
Normal firmware menu usage usually does not void the warranty; opening the case, physical CMOS intervention, or unauthorized firmware operation may affect the manufacturer's conditions.
No. It is more correct to not add unnecessary risk to a working system unless there is a security, hardware compatibility, or manufacturer's stated issue.
Universal password or bypass should not be used. Manufacturer support or the company's IT manager should be used with device ownership proof.
No. Firmware recovery, physical CMOS, disk failure, and data recovery operations require model guide and, if necessary, authorized service.
We safely examine Windows 10/11, Secure Boot, TPM, SSD detection, USB boot and firmware recovery problems according to device model.