Solved
reWASD still detected after uninstall
I uninstalled reWASD (deleted everything in the registry, every single file with the name "reWASD", there's nothing related to reWASD in my task manager) but the game always tells me it cannot run alongside reWASD.
What am I supposed to do? I seriously don't want to reinstall Windows.
Welp, found a solution :
Reinstalled reWASD and then uninstalled it with RevoUninstaller.
I performed an advanced scan after uninstalling (didn't restart my pc immediately) and unchecked everything besides reWASD (unchecked "HKEY_CURRENT_USER" to "SHC" and "HKEY_LOCAL_MACHINE" to "Classes").
Then I just restarted and boom BF5 could start again.
Be very careful with the registry key you select tho because I read you could blow your Windows install with this.
Cheers!
