Okay get ready...

I accadently set an security level on my External NTFS HDD with all my files.
Now i dont have access anymore to it.

I have tried:
reboot login as admin.
connect it to a other pc.
tools from the i-net.

What i am gonna try:
convert NTFS file system to FAT32 to remove the security level

Does anyone had this problem before? :
Yes , okay how did u solve it?
No , can my plan work without losing any data?

Thanx already for reading.

If you're still the "owner" of the files/folders, you should be able to select the root of the drive and reset the permissions.

PartitionMagic (which was recently bought out by Symantec) is/was the only program that I know of that could successfully convert NTFS->FAT32.