Since you are not in the Access Control List(ACL) of the “System Volume Information” folder you don’t have the right to look at its content.

http://www.techimo.com/forum/applications-operating-systems/61969-answer-system-volume-information-access-denied-question-also-system-restore.html

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Excerpt:

enter the following command while having sufficient permissions (being the only user of a machine or logging in as administrator should be sufficient)

cacls “System Volume Information” /E /P Leon:F

to change it back the way it was before, enter the following on a line by itself, and press Enter

cacls “System Volume Information” /E /R Leon

https://ss64.com/nt/icacls.html

Propagate a new permission to all files and subfolders of C:\demo\example\, without using inheritance:
(so if any of the subfolders contain specific permissions, those won’t be overwritten)

icacls “C:\demo\example” /grant:r accountName:(NP)(RX) /T