I admit that I have never fully understood the settings that can be found when I right-click a file, folder, or even a drive, click Properties, and then select the Security tab. Here is my particular situation. I am using drives which contain folders and files that I've had for years, and during those years they have been in many different systems, with many different OS installed. Inevitably, when I install a new OS, I will run into situations where when I try to read a folder on a drive, a pop-up will tell me I don't have permission to read that drive/folder/file. Even tho I'm logged in as the only user of the new OS, which I assume gives me Admin rights. So anyway, I have to click the pop-up and tell it to read the folder or whatever anyway, and then it goes ahead and does the read. But there have been many times when I cannot edit a file that is on that drive, and so on. So, what I've tried to do is to go to a particular folder on a drive, and right click and choose Properties, then the Security tab. In the list that says "Group or user names:" most of the time I see several entries that read "Account Unknown(...blah blah)", and they all have full control enabled. On the folder I just did that on, there were 8 different entries like that. Now, in addition to all those, there are three entries that read SYSTEM, (My user name with my outlook address), and finally Administrators. Of those last three, System has full control, Administrators has full control, but the entry that has my user name and outlook email address can only Read & execute, List folder contents, and Read. That's all. Now, shouldn't I be able to have full access to all files, with full permissions on each and every drive in my computer with the account I login in with? I'm the only user, so I'm thinking I should have full access to 99% of all files in each and every drive in my computer. How can I take care of this issue, because it gets very tiring having to go and change the Security permissions on a folder or file every time I run into one that won't let me edit it or change it in any way. I've tried running the "Take Ownership" program on entire drives, folders and such, but that doesn't seem to solve the security issue.... Any help would be greatly appreciated!!!