Administraor access denied lost all restore points message says no restore point

[satemp6]

Hello,
I need BIG help. I wouldn't go so far to say, I'm totally computer illiterate, but not far from it.. If there's anyone out there, who's up for a challenge PLEASE HELP!!
I'm running windows 7. I am the administrator. Someone I don't trust at all, used my PC a while back. After he (did whatever he did) I noticed I couldn't access several files. I get a "access denied" or you don't have permission to view this file, owner info etc.. I can see a lot of the files, but their either empty now or I can't view them. I have used restore many times in the past, but now I get a message " no restore points".. I don't know what he did, or if he did anything.. It could be one of my kids changed properties by mistake, before I wised up and created a basic user acct w/ limited access for them.. I almost forgot. When I go into file properties there is a red x by my user name (administrator) Not in every property, but several.. Sometimes there is a red x by other user names, as well, but mostly mine.. PLEASE PLEASE HELP!! OH and I should mention, my back up disk has just disappeared somehow!!

 

[soundguruman]

You can install the hard drive as a second drive on a functional computer.
You can recover your files and back them up, using a second computer.
You then reformat the drive entirely, or bulk erase the drive.
Reload the operating system from scratch and replace your backed up files.
OR have a computer shop do it for you...about $200.

After that, DO NOT load any more "free" programs into your computer, which is what I am thinking your KIDS did to you. They probably loaded "free" games, or "free" music, or other garbage, which corrupted your drive.

 

[unksol]

or you could just take ownership of the folder....

 

[PaulR08]

If the Admin permissions are corrupted then you probably should re-install the OS. I don't know an easy, non techie way to restore security permissions to an account. +1 to what soundguruman mentioned above.