Please help I've tried looking through all the threads I could. Inadvertently did this with a download last night. Thought boot into safe mode was being prevented by my wireless keyboard so I'm hardwired in now but still can't get to safe mode screen.
If you can not access Safe Mode for what ever reason, there is another option as well.
Use another system, download Microsoft Media Creation Tool, burn it to a flash drive. Come back to the unbootable system, place it in a USB slot, and boot from the flash drive.
Download Windows 10
Note: you may have to change boot order in your Bios to do so.
Once you have booted from it, DO NOT CLICK install, instead click REPAIR.
In the Troubleshoot options >Advanced Tools to open a Command Prompt, type: sfc /scannow
If this fails to address the issue, you can run a boot repair by entering Repair again, Troubleshoot options, run a Startup Repair. If that fails to start Windows, boot back into Troubleshoot >Advanced Tools to open a Command Prompt, type:
bootrec /rebuildbcd , press Enter, restart.
Once you gain access back to the system, try to determine what has caused this issue to begin with, normally it will be Hardware or Drivers, but can be software as well.