First check boot, whether you have started the computer acer aspire 5730 series laptop cpu fan operating system. If the starting operation system freezes, blue hold or automatic restart, show hard disk partition table and the master boot record on normal, eliminate the hard disk partition table damage, hard disk master boot record damage, hard disk partition end sign failure causes loss. Then use the following methods diagnosis.
Step 1: first use safe mode start the computer acer aspire 5520 series laptop cpu fan
, look to whether can start, if can't start, it may be infected, system file is missing, the operating system damage, hard disk with a bad word, hardware equipment have conflict or hardware, turn to step 4; If can start safe mode, it may be hard drive is not compatible with the system, operating systems have questions or infection by the virus.
Step 2: then run antivirus software, if has the virus, it may be caused by virus, antivirus after restart the computer acer aspire 5930 series laptop cpu fan, if it's not normal, will need to re-install the operating system.
Step 3: if not detect a virus, can use operating system comes with "system restore" function, will the system restore, reduced if the system normal, fault is by system damage and cause. If a fault is still, it may be device drivers and system not compatible with cause; Then will sound card, video card and card of equipment such as drivers to delete, and then one by one to install driver, every install a equipment will restart a computer compaq presario c500 series laptop cpu fan, to check the equipment which is caused by the driver fault, found out, download the new edition of fault equipment driver, then the installation can be.
Step 4: if not from a security mode, and then used installation CD to re-install the operating system. If can normal installation operation system, turn 7 step; If the installation operation system malfunction, such as crash, blue hold, restart, etc can't install system, it should be a hardware or hardware caused by bad contacts.
Step 5: then clean computer in the dust, clean the memory, such as video equipment gold finger, reinstall the memory and other equipment,compaq presario v3600 series laptop cpu fan then go back and installation operation system, if can normal installation system, it is caused by bad contacts the fault.
Step 6: if still can't install system
