Grub won't stop loading

Katsu Kiogin

I have just installed Windows 10 and dual booted Ubuntu. I made Ubuntu boot first through the bios I just deleted the partitions for Ubuntu I changed the bios settings so Windows 10 will boot first but grub keeps loading and it is in rescue mode so I can't boot. I am a devoper and have data on windows that if I have to reinstall windows will be lost is there a way I can boot windows 10 through grub then worry about grub once I am back on windows 10? Ps please respond as fast as possible I use this computer for developing and have irreplaceable data on my PC.

pzkpfw

This kind of issue can usually be resolved in the sort of the same manner whether you're on Win 7/8/10. I don't know exactly how this works for Windows 10 but I would be surprised if it's significantly different.

Windows 7 and 8 has a tool called bootrec on the install media that you can use to fix these kinds of boot issues.

  • Insert and boot from the Windows install media (USB/DVD)
  • Press any key at the "Press any key to boot" message
  • Click "Repair your computer" (or similar). R may also work.
  • Select "Troubleshoot", then select Command Prompt. Basically, your first goal here is to get to a command prompt.

So, when you have a command prompt window open and ready, run bootrec with whatever commands may be necessary (or all of them) -- these are:

  • bootrec /FixMbr -- will write a Windows Vista and Windows 7 compatible MBR to the system partition.
  • bootrec /FixBoot -- will write a new boot sector to the system partition. If your system is Windows 7, FixBoot will write a Windows 7-compatible boot sector and so on.
  • bootrec /ScanOs will scan the hard drives for any installations. ScanOs will also print installations that are not currently in the BCD.
  • bootrec /RebuildBcd will scan for installations on your hard drive and allows you to select which to add to the BCD.

When it has finished, remove the USB/DVD and restart your PC.

Source: https://neosmart.net/wiki/bootrec

(The above website also has a lot of potential solutions for errors that occur).

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