From the command prompt:
(hit enter key after each command)
ICACLS "C:\system volume information" /grant YourLoginID:F
this gives permissions to the folder
(yourLoginID= the account name you wish to grant permissions to)
ICACLS "C:\system volume information" /grant YourLoginID:F /T
this gives permissions to the folder contents.
Now you can view files in the System Volume Information folder.
To undo this:
ICACLS "C:\system volume information" /remove YourLoginID /T
Removes access to everything in the folder.
then
ICACLS "C:\System Volume Information" /remove yourLoginID
Removes access to the specified folder itself.
Source
Note: On my system when I ran the second command it failed to set permissions on one restore point file {xxxxxx}, maybe it is in use by the system and cannot be changed, not sure. I can see it in the SVI folder though, strange.
Also, using the Remove commands listed did not revert the changes, I can still view the files. I should have set a restore point before trying this, eek!