Hi
Not a solution but a suggestion!
Once you get it sorted out, be sure that you create a system image file.
I use EaseUS Todo backup, it's free, it works great and it's saved me multiple times since I started beta testing Windows 10.
Free Download EaseUS Backup Software for Windows PC, Workstation and Server.
I too do graphic design on my PC in Windows 10, and I haven't had any problems running anything on it.
From Photoshop, Illustrator and Indesign to Premiere and Poser Pro everything runs better then it did in earlier versions of Windows.
I don't have any freezes or crashes, it's pretty much trouble free.
But do make a system image and update it at least once a month, it only takes about 20 minutes to create or restore a backup.
The software will make a bootable repair disk in either Linux or Windows PE that will boot and repair your computer.
Before you pay someone to fix it I'd at least try and backup all your data and run reset and let it make a clean reinstallation.
This often works better then the original upgrade from a previous Windows version.
If you only have one hard drive then partition it into 2 drives with a smaller one for Windows and install all you stuff on the larger one, and save all your data there as well.
Do this right after Resetting you PC, before you start reinstalling your software.
Keep the C:\ drive as small as possible 200GB is plenty.
I'm only using about 75GB of the 250GB I have allocated.
If you can't get to the restore interface then you can get a Windows install disk here...
Windows 10
Mike