Ok. here is my problem. I am awaiting an enlighting eye on this one... I have a freshly partitioned slave hard disk. It is empty, and somehow, windows is running software on it and does not let me format it. It has nothing to do with the system, and I have to go throught the command dos prompt and dismount it first. Any ideas fellas ? My C: D: and E: partitions are ok. No problems there. Well, C: doesn't format either, but that's normal, considering the system is on there. How do I unprotect/dismount definetly the F: Drive ? PS: F: Partition is a 120 gb NTFS partition with 4k cluster Size. It is on a IDE 1 Slave drive (as opposed to a master drive where c, d and e are on).