notebook acer ao532 yg awalanya win 7 starter aku ganti instal win8.1 setelah restart ada tulisa 'your pc run into a problem and need to restart bla bla bla..dan ada tertulis eror code 0xc0000001(belum bisa buka desktop).karna eror begini,rencana Mau d instal ulang lagi win7,eh tapi ga bisa hardi...