Everything won't work after turning on/off my laptop charger.

Hi, my laptop has a problem which I think nobody has. I was playing a game called Mstar from Garena, and I noticed the amount of battery has decreased to 15%. So I went and turn on the charger. Suddenly my game disappeared and a promt(Rundll32) appears repeatedly, no matter how many times I press "Yes", it just keeps on appearing. I can't open any games/applications, including browsers, notepad etc. Everything(except opening folders) won't work even though I opened it with admin. I restarted my laptop and it stucks at "Logging off" so I had to "brute-force shut down". Once restarted, everything is back to normal. I opened my Mstar again, turn off charger(battery's full), and the game disappears, same thing happened before. But when I don't launch any games from Garena, turning on/off battery charger is normal. Any help is greatly appreciated. :)

Can anyone please respond?

Have you tried uninstalling/re-installing the game that is causing your problem?
That's what I would try.
I always make a system backup image before making changes like this...

I tried reinstalling but the error still exists. :/

Next I would try a Clean Startup:
Troubleshoot Application Conflicts by Performing a Clean Startup

If you can't find/fix the issue with a Clean Startup, I would then work through troubleshooting steps in this tutorial:
Troubleshooting Steps for Windows 7

I think it worked for me... so far.

Okay thanks for the tips. =)