Q:
My HP laptop got a problem: previously I reinstalled operation system once, and after that, when I restart computer, this error prompt “Invalid drive specification” appears. Meanwhile, I found the disk formatting could not finish; what should I do to solve the problem? Hope to get your any suggestion and help!
A:
1) This symptom is caused because the main partition of hard disk is not activated when partitioning disk. You’d just need to use DOS system disc to start the computer, run “fdisk” command to activate the main partition of the disk. Usually, in Windows mode, this job is quite difficult to finish;
2) Once there are some special tool software installed on the disk, or the disk has been used on other laptop, and then installed onto current laptop. Usually there’s disk partition problem, generally, under DOS, repartition and reformat the disk, then the problem could be solved. If DOS formatting could not solve this problem, then you need to repartition and format again;
3) When delete disk partition with FDISK command, main DOS partition could be deleted usually. If the deletion of disk logical partition fails, showing the error “No logical drivers defined”, or it displays “Cannot Delete Extended DOS Partition While Logical Drives exist” when delete extended partition; then you can consider using tool software to repair, if still not work, then low format the disk.