BSOD after uninstalling Avast

This is my first post in this forum and I read the stickied threads but I just don't know what to do, I guess my knowledge about PCs is limited.
So I'm running Windows 7 and I got this UDB/Shortcut malware which made a small window named wscript.exe being permanently on my screen. It was "activated" by clicking on a "FOTO FAMIlY" shortcut. So I found a solution in a forum and followed the instructions, installed several anti-malware tools and fixed the problem. I decided to look for a better anti-virus and downloaded Bitdefender. While it was installing it, I began uninstalling Avast and I got the BSOD...
Was it my mistake that I sort of "let my guard down"? Should I've waited for Bitdefender to install and then uninstall Avast? I believe my PC was clean of viruses/malware.
When I got BOS I couldn't even see the whole screen, the left side was cut off. I pressed all keys on the keyboard to try to shut down the computer but to no avail so I did so by pressing the physical key. Now I can't start Windows normally, when I press F8 I can't go to the Safe mode list but instead can either start normally or reinstall Windows...
If the only option is the second one and I can't backup my files it'd be just terrible. This is a family computer with all our photos in it and we've already lost everything because of BSOD TWICE. I'm really considering switching to another OS.

The title of the BSOD was:
(part I couldn't see)_WITHOUT_CANCELLING_PENDING_OPERATION
Things I can access right now:
http://imgur.com/fjBPWX6
http://imgur.com/CnpIavd
http://imgur.com/YqwexfU
I'll be posting from an Android phone.

Edited by Newmail99, 04 September 2017 - 05:32 PM.

The first (and easiest) thing to do is to slave the hard drive to another computer (one with a good, working antivirus), and copy your data (files and photo's) to an external (USB) hard drive.

More suggestions may be found in the Backup forums located here:  http://www.bleepingcomputer.com/forums/f/238/backup-imaging-and-disk-management-software/

 

Once the data is backed up (presuming you are able to backup the data), then start with these free, bootable hardware diagnostics:  http://www.carrona.org/initdiag.html

From the 3rd picture that you posted, it may be that the hard drive is dying.  So, that's the most important hardware test to run (for now).

If you have a UEFI based system, the hard drive test may not boot.  If that's the case, then post back with the make and model of the system for some further suggestions.

 

Let us know the results of the diagnostics and we'll move on from there.