after I installed windows 7 on my pc, I noticed that 1 of my 5 hard disk partitions was missing. the real cause of this is not yet clear to me, it is probably related to the ability of the windows 7 installation process to assign driver letters to a big number of partitions, but who knows.
Anyway to get back your partitions do not try extreme solutions such as BIOS settings and chipset INF files, just follow the following steps.
1. right click “Computer” and select “manage” . click “disk management” from the list on the left.
2. locate the missing partition, it is usually the partition without a driver letter.
3. right click it and assign a driver letter to it.
That’s it ! everything should work just fine now.
By the way what was you first impression after installing windows 7? I don’t know about you but I was a little disappointed