HI , FOR SOME REASON MY PC HAS CHANGED TO 86 BIT........SO NOW MOST PROGRAMS DON`T WORK !!!......HOW CAN i RETURN TO 64 BIT ? IF i DELETE IN PROGRAM FILES 86 BIT , WILL THIS RESOLVE THE PROBLEM ?
Did you reload windows because windows cannot change from one to the other without a reload of windows. If this is the case you will have to reload again. If this is not the case you are fine and I would bet you got some malware. I have run into some recently that say it wont run software b/c it is 32 bit this is fake run a spy scan with malwarebytes or Combofix see what happens.