Reset to factory settings

Hi, assuming Win 10 was working for you, is there any reason, functionally, that you would wish to return to Win 7?
(I could quite understand if you had some..!)

Bear in mind that once you have upgraded to Win 10 on a PC, you can clean install Win 10 at any time you like.
If so, if you haven't already got it, you can download Win 10 and create bootable USB drive or DVD, and use that to install Win 10.

I would, however, check your disk before doing anything significant.

Having a bootable medium is useful for recovery purposes.

Hi, I'll assume you had already recovered any data from your PC that you hadn't backed up. Having started a factory reset which didn't complete we of course can't be sure what state your drive is in- i.e. factory reset would wipe everything and restore your PC to as new, hardware problems aside.

To clean install Win 10 the best starting point is a single unallocated space (no partitions) on your system drive.
You can choose to keep your recovery partition if you think it's of any use at some point.

You will need to be able to boot using a partition manager boot medium (disk/flash drive) and then delete unwanted partitions. E.g.
Bootable Partition Manager| MiniTool Partition Wizard Bootable Edition

Using that you can delete all the partitions you don't need, and arrange to have one contiguous unallocated space.
If you have any data partitions, you will obviously want to keep those.

Then you will need Win 10 a bootable medium:
Windows 10 ISO Download - Windows 10 Forums

and you can proceed to install Windows.

Once you have a working configuration, the first thing to do is secure it so you have much easier and faster recovery options without technical help in the future: use disk imaging routinely.
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Creating disk images lets you restore Windows and all your disks and partitions to a previous working state, quickly and probably without technical help.

You can recover from:
- a failed disk drive (restore to a new one)
- ransomware (which encrypts your disk)
- user error
- unrecoverable problems from failed updates to problem programs
- unbootable PC (hardware faults aside)

Images also act as a full backup- you can extract files too.

You can even use images to help you move more easily and quickly to a new PC.

Imaging can even help you sleep at night knowing you have a second chance.

Many here recommend Macrium Reflect (free) as a good robust solution and more reliable than some others. It’s
- more feature rich
- more flexible
- more reliable
than Windows Backup and Restore system images.

It's well supported with videos, help and a responsive forum.