I am using the Compaq CQ10 netbook and this was running well earlier but from last night when I try to start this then I am getting one error message as “boot device not found” and this is having the error code 3f0. Now I am not able to start my computer in any of the possible ways. This happens all the times when I start the system. There is no more information for this mentioned. Can you tell me that what can be the reason for this problem and how can I solve this problem? I have never faced this problem earlier and so not having any idea regarding this. Now I am totally dependent on the replies from here. Thank you so much in advance for the reply.