Windows 10: Green Screen of Death during registry deletion and disk security edit

I am using Windows 10 insider preview. It was completely healthy until yesterday night and I desperately need help. This is the first time I couldn't fix something and post it online, so please help.

Problem 1: I tried to open a custom guest- account with limited hardrive access. From my personal account (not admin either), I tried to set disk permission. Along with my username and admin and guest-, I noticed a random user like 5890..., a long number. And removed its permissions. While this was ongoing, I saw folders with the the same user (long number) at under HKEY_USERS tab. It didn't permit me for some of them and I clicked OK. Suddenly I get Green Screen of Death --> no code, just a barcode.

Problem 2: It obviously didn't boot and none of the troubleshooting options including System restore blabla would work. I tried to do System Image Recovery as a last chance from a recent image, it failed in the end too. But this time . I can't even access my C: on command drive --> It's letter is shifted to G and partition type became Fat32. Diskpart can't even do anything on it without formatting, and I don't wanna lose my data.


Question 1: What might be going wrong here? Many things?

Question 2: Do I have a way to remove this lock and make the disc accessible for a new Windows installation w/o erasing data?

Question 3: If I hook my C drive to another PC, will it still be inaccessible? If so, how to retrieve it w/o using a search and rescue data scraper program?

Question 4: How about my image backup? It's on another drive. Can I simply erase-format C + install Win and then load the system image of C on itself and voila? Or it's too risky to try? Because I am very sure my Windows had no issues at the time of the image (2wk ago).


Question 5 (optional): Do you guys also think Windows is extremely fragile (1 delete button = GSoD)? I mean shouldn't it have prevented me from deleting those keys? If MS doesn't fix the known issues and keeps recolving the OS around Registry editor, we're likely to see Red screen of death soon, right? The more I keep fixing it the worse the situation becomes, it's like almost a self-virus..


I can't do anything now but play with the command prompt. I can't even to fixmbr fixboot etc.

:)

 

Green Screen of Death


Has anybody else getting the new GSOD (Green Screen of Death). I've gotten "Kernel Mode Heap Corruption" on 2 programs that never had a problem before. Tweaking.com Repair and Regrun.

 

Green Screen of Death

Not yet - I'm hoping (sort of) that MB 3.x triggers it on one of my VMs, but thus far, nothing.

 

Green screen of death

Hi SharonFlanigan.

Green screen of death is an indication for the insiders builds.

Are you insider?

What is your current build?

For insiders better to use insider forum for better assistance.