NTFS introduces file protection and key system folders like System Volume Information are therefore locked by default. This folder contains information about your System Restore points, which is why it’s a good idea to leave well alone.
If, however, you’d like to see what’s inside, you can do so by tweaking the file permissions for this folder.
Click Start -> Run, type cmd and press [Return]. Now type the following, pressing [Return] to gain access to the folder and replace Username with your username (note that if your username contains spaces – for example, Michael Carter – then you need to enclose it in double quotation marks: “Michael Carter”):
cacls “c:\System Volume Information” /E /G Username:F
If you want to reset the permissions, just type the following, again replacing Username with your own username:
cacls “c:\System Volume Information” /E /R Username
Windows XP Professional users can gain access by right-click the System Volume Information folder and choosing Properties (or Sharing and Security if you’re on a domain). Click the Add button and enter your username before clicking OK twice. You should now have access.