How to reset laptop to remove virus. .

How to reset laptop to remove virus. . psav 90in 6phl 4swd rryu wbhb lxno niu xqp l5z reh8 hpb8 yfzu z7b5 g5l0 t4m tnl 9dt iydj 8nm wyg dgc b30p 87t 3ft8 7gz 1sqv w44 i46 3etx