Last night, it was raining heavily. I was out of my home for some reason. I waited for rain to stop but it didn't stop. And as i was getting late, i walked in rain. I trusted on my laptop bag. I thought it's 100% waterproof. But it was not. laptop got some moisture. I made a mistake, i didn't remove the laptop from bag for the whole night and now at evening (next day) when i took out my laptop and turned it on, it started to beep. I pressed few keys and then it started normally. But i think my laptop is not functioning normally. When i press left "ctrl" key, it changes the tab of my browser. Could you recommend me some trick to fix this issue.