I have a NTFS external hard disk. It was in use primarily with one laptop, but that laptop has since been replaced. With my new laptop, I'm finding all my files are now read-only. The "read-only" checkbox is unchecked, but it seems to be ACLs causing the problem.
On all the files, the only writable permissions on the ACL is SYSTEM, Admistrators, and "S-1-5-21-....", the account number of the account on the old laptop, I'm assuming. Click "advanced" says this permission is "Inherited From" "E:\". However, if I open the ACL list on E:\, I do not see any permissions involving "S-1-5-21..." - why not?
Is there anyway to wholesale update this device to the new user's account, so that I can write to things?
Edit: This is an external drive, and does get shared about machines a bit. Is there a better way to do this?
Edit: The old machine was Windows Vista, the new machine (the one I'm working on) is Windows 7.