2 days ago ,i switched on my pc,but monitor was not plugged correctly so i turned off the system by turning of the switch directly and again i tried it was slow so i restarted for atleast 2 or 3 times,now i am getting a reoprt that it was not switched off correctly and has got the problem ,if u wannu use the system use with the last recommendaded version or the other option is safe mode. but when i opt for safe mode the system is not entering into windows. so please can any one suggest how to correct the problem .