Hi Jake. I'm Greg, an installation specialist, 10 year Windows MVP, and Volunteer Moderator. If you will work with me I will be here to help until the issue is resolved.
You didn't say if System Restore or Repair Install were able to run. If not run System Restore from Repair Mode or booted media: https://www.tenforums.com/tutorials/2294-advanc...
- Re-register the Start Menu from https://www.kapilarya.com/re-register-start-men...
- Re-register the Settings app from Option 2 here: http://www.tenforums.com/tutorials/3175-apps-re...
- Test the hard drive or SSD with diagnostics:
https://www.lifewire.com/free-hard-drive-testin...
https://mashtips.com/ssd-health-test-and-perfor...
HP and Dell have hardware diagnostics triggered by tapping the ESC or F12 keys respectively as you power on.
Best is to use the HDD/SSD manufacturer's own if there is one, otherwise use Seatools bootable long test: http://blog.nowherelan.com/2013/04/04/boot-seat...
- Test the RAM overnight to stress it with the best bootable test memtest86, following this guide to test both sticks and slots:
https://www.wikihow.com/Test-PC-RAM-with-MemTest86
What 3rd party registry repair did you run? These are the most harmful thing one can do to Windows and can ruin it beyond repair. Even CCleaner is no longer trustworthy to use after losing their genius developer when Avast bloatware bought them.
Based on all you've tried and the ruinous registry cleaner, I would wipe the drive to reinstall doing a gold standard Clean Install in this link which compiles the best possible Install of Windows which will stay that way as long as you stick with the tools and methods given, has zero reported problems, and is better than any amount of money could buy: http://answers.microsoft.com/en-us/windows/wiki...
To create bootable Windows 10 Installation Media (on another PC if necessary) install Media Creation Tool and follow the directions in the middle of the download page here: https://www.microsoft.com/en-hk/software-downlo...
Insert media, boot it by powering up PC while pressing the BIOS Boot Menu Key for your PC maker given in this chart: https://www.sysnative.com/forums/hardware-tutor...
If the media won't boot you may need to enter BIOS/UEFI Setup (pressing key given in chart in link above) to turn off Fast Boot or Fast Startup first.
Choose the boot device as a UEFI device if offered, then on second screen choose Install Now, then Custom Install, then at the drive selection screen delete all partitions down to Unallocated Space to get it cleanest, select the Unallocated Space, click Next to let it create and format the needed partitions and start install - this makes it foolproof.
There is a step to rescue your files first using the booted media if you don't have them backed up: http://answers.microsoft.com/en-us/windows/wiki...
You will get and keep the best possible install to the exact extent you stick with the steps, tools and methods in the linked tutorial. It's a great learning experience that will make you the master of your PC because you will learn everything that works best and how to apply it with your own hands.
I hope this helps. Feel free to ask back any questions and let us know how it goes. I will keep working with you until it's resolved.
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