Hi,
1. Are you logged in as the administrator?
2. Have you tried deleting the folder as the administrator?
3. Are you facing any issues with Windows update?
Method 1:
I would suggest you to take full ownership of the folder and then try deleting.
a. Right-click the folder, and choose Properties
b. Click the Security tab
c. Click Advanced, then the Owner tab
d. Click edit, and then your username (make sure to check Replace owner on sub containers..)
e. Click Apply, then OK
f. Now, under Permissions, click Change Permissions
g. Click Add, then type in your username and click OK
h. Check the Allow box under Full Control, then click OK
i. Now choose the Replace all child permission checkbox
j. Click OK, then Apply, then close.
Refer:
Take Ownership of a File or Folder