This is clearly closing the stable door after the horse has bolted but when you get 'er fixed - IMAGE (backup) the OS drive!

I thought you had/used Acronis? Maybe not, but in any case get and use something. Even PC's/laptop's that are used off-line need to be imaged, FREQUENTLY, for just such disasters.

Just the fact you turn on a PC puts them at risk of a SNAFU, let alone HDD, yes even SDD, errors in the worst possible place. Murphy is ALIVE and well and living in your system.

GOOD LUCK
Larry

Win10Pro,i9,64GB,2TBSSD+20TBHDDs,1080TI,BIAB'24,Scarlett18i8,Montage7,Fusion 8HD,QS8,Integra7,XV5080,QSR,SC-8850,SPLAT,FL21&others,Komp.14,IK suite&others, just a guitar player-AXE FX III &FM9T, FishmanTP, MIDIGuitar2, GK2/3'sw/GI20