|You should ALWAYS maintain at least two copies of any files that are important to you. Lots of things can happen to your computer.|
I suggest your priority now should be to copy your personal files to removable media. Puppy or many other versions of Linux install to removable media and do not disturb the Windows installation because they run from that removable media.
You can use the computer hardware to copy the files to removable media or to burn them to optical disk.
After your files are copied, VERIFY the copies are good by viewing. Then proceed with the repair feeling more4 confident.
In the future make backups.
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