Non-bootable device problem

Anyone can help me with the problem with my Toshiba laptop windows 8.1? 

My computer got too many downloads (Automatically)  I really hate that part because i only need very simple functions like email and internet news.  I was trying to restore to the factory default,  it didn't work. Then i was trying to delete some softwares , it didn't finish either. When i try to turn on computer again, it failed to start with error message says " Non-bootable device " .

I searched internet for solutions, followed a lot of people's sugestion, still not working.

Plus, i really hate windows 8 version.  Would like to change to windows 7 or windows xp. Is it possible to replace windows 8 with XP or 7? 

If anyone can help or have disk for solving this problem , i would pay for it and Appreciate very much.

Thanks

所有跟帖： 

• 看得懂就去拿吧！free stuff -5W40- ♂ (238 bytes) () 12/26/2014 postreply 13:41:55

• 电脑盲一个，完全不懂。请耐心指教！ -linna118- ♀ (0 bytes) () 12/26/2014 postreply 14:27:08

• 假设还有至少一台能联网的电脑..... -5W40- ♂ (866 bytes) () 12/26/2014 postreply 14:44:21

• Thanks.don't know if i can use windows 7 or not. going to buy on -linna118- ♀ (39 bytes) () 12/26/2014 postreply 16:06:19

• 如果没啥重要文件在电脑里的话，可直接装win7 -5W40- ♂ (0 bytes) () 12/26/2014 postreply 16:27:46

• thank you so much. -linna118- ♀ (0 bytes) () 12/26/2014 postreply 17:52:59

• 参考这个贴吧 -ddy- ♂ (109 bytes) () 12/26/2014 postreply 16:06:26

• 谢谢提供帮助。 -linna118- ♀ (0 bytes) () 12/26/2014 postreply 17:56:44

• Before taking Windows 7 option -chirolike- ♂ (573 bytes) () 12/26/2014 postreply 17:08:18

• 我试了很多方法都没能使restore work. 你有什么好建议？ -linna118- ♀ (0 bytes) () 12/26/2014 postreply 18:00:09

• 别的盘启动或恢复，要是你不懂，又没有细节，别人也难教。 -chinomango- ♂ (0 bytes) () 12/27/2014 postreply 18:46:18