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- #How to wipe a computer from bios how to#
- #How to wipe a computer from bios plus#
- #How to wipe a computer from bios windows#
That last command returns the following on the Dell machine in the example above: The pipe command (|, above the Enter key) redirects the output from the wmic bios get /format:value command to find, which then filters it and shows only the line(s) that match SMBIOSBIOSVersion (the find command is case aware, meaning the correct capitalization is necessary to return a match). Wmic bios get /format:value|find "SMBIOSBIOSVersion" Systeminfo only shows "DELL – 15", which isn't very helpful.Ī more complete query of BIOS information can be done via WMIC.
#How to wipe a computer from bios plus#
Phoenix ROM BIOS PLUS Version 1.10 2.6.3" Hopefully, your BIOS is reset, and your problem solved.It looks like Systeminfo is only returning the first line in HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion, which can be incomplete.įor example, on one of our Dell Optilex 745s, that registry value is: We like to use a screwdriver here, but be careful not to touch anything else, or you could fry your motherboard. If you don't have a jumper, you can use almost anything to "short" the two pins. Remove the jumper and put it back on one pin, plug your computer back in and restart. This completes the circuit and resets the BIOS. Remove the jumper and place it on both pins. Unplug your computer first, and we like to make sure we're grounded and not getting a small shock by gently touching or tapping the power supply with one hand. In most cases, these pins will have a jumper on them that is only one pin. On small factor motherboards, these pins might be in the corner of your board with all the other pins. Almost always, with an inch or two of the battery, you will see two pins with small white letters (hence the flashlight) that says CMOS, CLR_CMOS, C CMOS, CLRMOS, or similar. It looks like a watch battery because, well, it's a watch battery. Look for the battery on your motherboard. Remove the cover on your computer and get a flashlight. Once again, this takes a bit of looking around, because all computers are the same, yet a little different. If your computer isn't bootable due to a BIOS issue, you can still reset to the factory defaults manually. The BIOS is some pretty geeky stuff, but you can always exit without saving, a choice you will be given before you exit. If you can't find the reset option, it can sometimes be hidden in the Exit screen. Remember, your settings could say optimal (always a good choice) default or factory.
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As you can see in our BIOS, there's a Default(F5) option next to a few other settings.
#How to wipe a computer from bios how to#
You can guess, or Google the name of your computer or motherboard, followed by BIOS to find out.Īs we mentioned, each BIOS is different, but almost all of them will offer a keyboard shortcut at the top or bottom of the screen with other frequently accessed settings. Any amateur computer technician should know how to reset BIOS passwords that can be setup from within the BIOS because there are times when they need access to change some configuration options such as the boot order or disable functions like AHCI mode. Yours could be F10, F12, or one of the other Function keys.
#How to wipe a computer from bios windows#
You should see the correct key when the black screen appears and before the Windows splash screen.Īs you can see, my key is DEL or F2. This is accomplished by rebooting and pressing the proper key to enter setup.
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The easiest way to reset your BIOS is from the BIOS settings. TIP: Hard to fix Windows Problems? Repair/Restore Missing Windows OS Files Damaged by Malware with a few clicks