I’ve had that happen with a few games. When it comes to something that bad you are going to have to go down the route of modifying your Computer’s registry and/or cleaning temp files OUT.
WARNING: Before you go crazy with this. if this pc has something important on it like bookmarks, photos, documents. copy it all and throw it on a Flashdrive. Because if this stuff is on a solid state drive and something happens. You will never get those files back.
Start with “RUN”
type in %TEMP% and press enter.
Then inside of that folder highlight everything and press “DELETE”. It may come up with a prompt about files in use, or it cant delete them.
don’t force it, just SKIP ALL
Then try re-launching Overwatch. If it works. awesome. If not. you will have to take the drastic approach of taking out the game manually. Since your uninstaller is either CORRUPT, comprimised or your registry didn’t file the game right on the drive and some dependancy got moved somewhere where the system cant see it.
If that doesn’t work you are going to have to do this the hard way.
(This is the Same way I remove viruses from computers and take a surgical approach to the start of a virus removal).
I’d delete the game and then go to your registery and start searching for overwatch files.
now remember, playing in the registery is very dangerous. These are your system files. which can nuke your operating system or a function of the pc if you delete the wrong folders (or trigger a recovery prompt) or cause the pc to lock up.
First thing you are going to have to do is go use something called the Registery Editor.
Locate “RUN”
in “run” type in “regedit”
your UAC will more than likely pop-up. click “YES”
At the top of the menu you will have to look for “FIND” which is in the menu “EDIT”
You can press ctrl-F and it opens up a prompt
From there you can type in “Overwatch” and press “ENTER”
On the left side of the screen there are folders which show
HKEY_classes_root
HKEY_current_user
HKEY_local_Machine
HKEY_Users
HKEY_current_Config
typically it pulls up in “HKEY_root” first. which is going to be pulled up in a LEFT side scroll box which shows lots of Files and it will highlight those files in the right pane. it might be an “ab” file which from there you will DELETE that file.
Right click. “DELETE”
then you press F3 "Which initiates a “find next” command, and it will search. and you will look at the file and if it says “Overwatch”. delete it.
RINSE and repeat. (pressing F3, deleting the file that says OVERWATCH). or contains the word “overwatch” in it.
NOTE: You may come across files that say " (Default) " just scroll to the right and check the file pathing. it may contain the words “overwatch” in it as well. This throws people off, and is a file that needs to be deleted. as it is an associated or dependency file.
Depending upon this you may have to take over 1-2 HOURS of manual removal of the files and then restart your PC. Yes, you can literally spend 1-2 hours of pressing “F3” to search for every file of “Overwatch” to delete.
Once this is done. re-start your pc and then reinstall the game.
Note: if you have accidentally deleted a system file, the reboot may take longer, it may flake-out or it may make you do a system repair. Which takes a few minutes to HOURS. so just be careful.
Notes, you may have to go as far as even removing battlenet fully (this same way) in order to fix this.