We never know when windows operating system starts to give problems. It will be working fine but right after system restart, it will start to give problem. This is a major problem of windows OS.
In the same way, i just switched on the system and browsed for a while then turned it off. After a while when i came and switched it on, sound was not activated. There were no system sounds, i was not able to play songs and etc... Then i re-installed my system drivers by thinking that the problem was with sound drivers. But i was wrong. The problem was with windows instability and bugs. Then i thought for while and ended up by a working solution.
Solution goes like this :-
- Go to run or shortcut Ctrl+R.
- Type services.msc
- Find Windows Audio and then right click on it and select Properties.
- In General tab, check whether the service is Started or not. If stopped, then click on Start button.
- Now go to Recovery tab and select "Restart the service" in all 3 fields namely First failure, Second Failure, Subsequent Failures.
- Click on Apply and OK.
That's it :)