Hello! My name is Renzo, I'm an independent advisor and a long-time Microsoft user. Let's work together and sort this out.
"Inaccessible boot device" on Windows means your computer cannot access the partition where the operating system is stored, preventing it from booting properly; this error usually indicates a problem with your hard drive, its connections, or the system files responsible for booting up.
Resetting the BIOS is one of the ways to resolve it. You can also repair any corrupted system files by following the steps below.
- Open Start, type: CMD
- Right click CMD
- Click Run as administrator
- Type in at the prompt OR Copy and Paste these one at a time : (Hit enter after each)
Dism /Online /Cleanup-Image /CheckHealth
Dism /Online /Cleanup-Image /ScanHealth
Dism /Online /Cleanup-Image /RestoreHealth
Run the System File Checker utility:
- Open Start, type: CMD
- Right click CMD
- Click Run as administrator
- Type in: sfc /SCANNOW
- Hit enter
This will check for any integrity violations
Restart your system once all commands are done.
If this doesn't work, only option is for you to reinstall it through Clean installation. You can follow the steps in this link to do a Windows Clean Installation, you will need another working Windows device and a flash drive (8gb and above storage). https://support.microsoft.com/en-us/windows/rei...
Under "Steps to reinstall Windows with media" click the drop down for clean install and follow the instructions from there.
I hope the above steps helped you. In case of additional questions, reach out back to me, and I will be happy to help and try my best to resolve your issue. Thank you.