Sometimes, we need to enter our system BIOS. The reasons for this can be troubleshooting errors or installing a new operating system. Every computer has a dedicated key to access the BIOS. This key is ...

Open Command Prompt or PowerShell and enter "wmic bios get serialnumber" to find your PC's serial number. Windows and System ...

For the 7300 series at least, when booting, the cursor will show in the upper right corner of the screen. Hit F10. If that dosen't work, your HD doesn't have Compaq's Bios file (another Compaq ...