After windows re-installation I can't open music files anymore

Question

Hi, so I re-installed my windows and after that I installed iTunes. When I try to open my downloaded iTunes music files which I downloaded before re-installation, iTunes software says that I don't have privileges to access these files with this computer. The computer is the same which I use to buy those music files, only thing what is different is that I re-installed windows. Please help how I can play and burn my music files again.
Amilo A1650g-15   Windows XP  

Answer 1

The permissions on those files are probably set to be readable only be the previous owners. Since you reinstalled, you are no longer the owner.
To fix it, you need to have Administrator permissions in your account. Find your Music folder in Windows Explorer. The default location is "My Documents\My Music\iTunes\iTunes Music". To find out what your Music folder is, in iTunes go to the Edit menu and select Preferences. Click the Advanced tab and under the General tab it will show your Music Folder location.
Right-click on that folder in Windows Explorer and select the Security tab. Under "Group or user names:", it will probably show long sequences of numbers instead of your account name. If this is NOT the case (i.e. you DO see your Account name), then do not follow the rest of my instructions, as permissions are not the problem.
First check to see if "Inherit permissions" is set. Click the Advanced button. Is the check box for "Inherit permissions" checked? If so, cancel out of the dialogs, then navigate up one folder. Get the properties of that folder and again select Security.. Advanced. Keep going up until that box is not checked.
Once you have gone up far enough in the folder tree, you have to make yourself the owner for that folder and every folder below that. Click the Advanced button, then the "Owner" tab. If "Current onwer of this item" isn't your account name, select your account name from the list under "Change owner to:", then check the box for "Replace owner on subcontainers.." Then click OK.
OK, this is a little dumb, but in order to get the permissions window to refresh you have to close the Properties window and reopen it again; i.e. click OK on the My Music properties window, then right-click on My Music and select properties again.
Click Advanced again. Is your Account name listed in the Permission entries? If not, click Add, then enter your Account name in the box and click OK. Select your account name in the list and click Edit. Make sure the "Full Control" box is checked. Click OK.
Click the box for "Replace permission entires on all child objects...", then click OK. It might take a while to finish, but when it does, you should be able to read all your music files.