I tried to replace 3 files in the system 32 folder

Hey guys, I tried to replace 3 files in the system 32 folder, and must have made a mistake along the way leaving my laptop inaccessible once logged on. The three files were:
uxtheme.dll
themeui.dll
themeservice.dll

I received these error messaged when logged on:

dwm.exe - Application error
the application was unable to start correctly (0xc000007b). Click ok to close the application.

explorer.exe - Application error
the application was unable to start correctly (0xc000007b). Click ok to close the application.

Can system restore revert back the files so it was like i never attempted the patch?

Also, sorry for the previous rule braking reply. Thanks :)