please help me to solve a problem

[Guest Riyas Areeckal]

hi all

 

 

while I am using my pc( sony vaio) ..i cannot touch the any icon of desktop in left upper side.....and if i open any file i cannot go back through back arrow....if i minimize its possible al so...and i cannot sign out from my face book account while on using through google chrome....let me to solve the problem please

 

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