I was helping a friend with clearing her laptop of some adware and viruses and I run two programs
Junkware Removal Tool.
But after that she complained that she couldn't change the Windows 8 color scheme anymore. So I logged in to Teamviewer again and tried what she couldn't accomplish. If she clicks another color scheme it changes back to the default one. Very strange behaviour. I googled this problem but I just couldn't find a solution or someone with the same problem.
Below I added an image where the problem occurs. As you can see the color scheme is set on default now. When I click another it simply changes back to default.