salam ye problm he k jb b pc on krti hun to ik option ata he k username r pass phr niche ok likha hota he.me srf ok krti hun to hmra pc on hojata he.username r passwrd nhi lkhti. us window pr log on to windows likha ata he. plz ye btae ye windows kse cloe hogi ta k hr br pc open krte wqt isy ok na krna pare