First thing is to recover all your data. Unless you're a very switched on windows user you shouldn't be fooling around with insider builds at all. If you do you have to maintain good backup images so that you can recover back when problems arise that you can't fix.
Macrium Reflect Free is top of the line.
Once Data files are recovered and backed, I would download and create an install media using MCT
https://www.microsoft.com/en-us/software-download/windows10
Remove or disconnect any other drive other than the one your going to install windows on.
At the start of a clean install I would hit F10 and Shift key that will bring up a command prompt, I would use diskpart to clean all on your disk/SSD
Diskpart
Select Disk
Clean All
Exit
Exit
Continue with your clean install
If you have hardware that does not have windows 10 drivers for, meaning that there not compatible with windows 10 either find ones that are or go back to 7 or 8.1 Insider builds are not going to support hardware that is obsolete. There are workarounds for most obsolete hardware but its hit and miss and not easy you'll have to search and find drivers that will work. this can take hours or days and weeks, generally not worth it for everyday users