Changing Themes Via The Ones Pre Installed And It Might Change My Desktop Wallpaper?

So in the last month i noticed some of my folders i keep on the desktop change form the newer slicker icon of a folder back to the typical windows yellow folder. Then more and more until all of my folders where like that.Then all of sudden some sounds started to go from a normal contemporary notification sound to a dull sound from XP or older.Then about a week ago the "bar" if you will changed from a typical Win7 style back to a XP one where its dull. And its like that everywhere.

I have tried icon programs at first to fix the folder issue and unless i wanna do it one buy one its sucks and i just want them back to a normal win7 folder nothing fancy.I have tried changing themes via the ones pre installed and it might change my desktop wallpaper it never changes the "bars"Also tried other non microsoft theme programs with the same results.

ALSO i scanned my pc with Malwarebyes, CCleaner, WinASO, AVG and cleaned all up and so on rebooted all the same.Thought i may have installed too many apps or at least big apps (photo/video editing) and i uninstalled a few with no difference.So then i decided to check out my ram. So i make a bootable disc of a memory scanner. Ended up getting into the millions of errors with the ram i had and i stopped it before it was done with the intentions on getting ram and not waiting until scan was done to tell me i had 500 trillion errors lol.
Bought new ram installed it started her up and BAM .... same thing.I have not scanned this ram as my wife uses it while im at work and when im home i do alota 2nd job stuff on it so i dont like having it offline long.