Using a custom theme leaves me with Classic theme

I just got a new PC and I want to use a custom theme on it (I absolutely hate the default aero theme, especially after using a much nicer version of it for years on my old PC).

I download a theme. I use the UniversalThemePatcher (the 64-bit version since that is the one I have) to patch the 3 files (I did run it in Admin mode). I restart (and even now after opening it, it tells me that the files are correctly patched).

I copy the necessary theme files into Windows/Resources/Themes but when I open the theme it gives me classic windows. Even after restart.

I tried multiple themes, it's all the same.

I even restored the files with UTP and tried UxStyle. Still the same results.

I even tried to put the following commands into the elevated command prompt (because google told me to do so):

sc config uxpatch group= "File System"
sc config UnsignedThemes group= UIGroup

Still nothing.

I have Windows 7 Home Premium. Build 7601 (7601.17944.amd64fre.win7sp1_gdr.120830-0333). I am indeed in the admin user.

System specs (it's a laptop actually):

Dell Inspiron 17R Special Edition
Intel® Core™ i5-3210M 2,5Ghz.
6GB DDR3 1600MHz
HDD 500GB + 500GB.
17.3" FHD 1920X1080 Anti-Glare
NVIDIA GeForce GT650M 2GB

What exactly do you wanna do? would u explain more..

I want to use custom themes for Windows 7.

Yes, regular Aero works. Custom themes don't (well, the ones you can download from the official page work, but those obviously only affect very little).

My theme folder: https://i.imgur.com/PCvtA.png
(Aero+ is the custom theme I want to use, I have tried other themes as well, none work).