3 locked instances .exe but Unable to run .exe file

Hi everyone,

I've got this serious problem recently.

I can't run some .exe file. This problem happens a month ago, but now that file is able to run now, and now it got other .exe file can't run. Everytime I keep launch the .exe application file, the cursor just keep 'run in background' as I check on Task Manager, there's no application I launch. Then I tried to restart my PC, and now it got 3 instances of the .exe file I tried to run. Three processes only took 50 kb memory (This app usually normal and took 1GB memory). I tried to end the process, and it just wont let me end it and then I tried to force unlock the file, it says that svchost.exe -k netsvcs and system keep locking the file, I force unlock them, and no luck.

I can launch this app months ago, and just can't launch it today, but other app that can't launch a month ago, can be launched today. It's like
A month ago:
- some_game_i_usually_play.exe | had the same thing, 3 instance and can't be unlocked.
- working_software.exe | works perfectly
Now:
- some_game_i_usually_play.exe | works perfectly
- working_software.exe | had the same thing, 3 instance and can't be unlocked.

Please help, I really need to use my app right now

Thanks for the help

EDIT : Run as administrator ? Tried no luck. Just for your information, this app always runs perfectly, but not today.

EDIT : Screenshot

Tried to launch thea.exe, waiting for hours nothing happens, cursor keep showing 'run in background'. process didn't show on Task Manager

Restart computer and see that it had multiple instances thea.exe with low memory consumption (this app consume huge memory), and can't be terminated or unlock process.