Yes, it is possible to repair Windows on your hard drive without formatting the files inside. Here are a few steps you can try to fix the issue of your PC always booting to BIOS:
1. First, ensure that the hard drive is properly connected and recognized in the BIOS. If the hard drive is not detected, check the cables and connections to make sure they are secure. If necessary, try using a different SATA cable or connecting the hard drive to a different SATA port on your motherboard.
2. Once the hard drive is detected in the BIOS, you can try repairing the Windows Boot Manager. To do this, you will need a Windows installation media (such as a USB or DVD).
3. Boot your computer from the Windows installation media. You may need to change...