Hi Maxi,
Thank you for posting in Microsoft Community and being part of Windows 10.
I understand the inconvenience you are facing in accessing files/ folders in Windows 10. We will help you to resolve this issue.
I suggest you to follow the below steps to provide permission to the folder and check if that helps.
Use the following procedure to fix this as long as you don't reboot your machine:
-
Sign-in as an administrator on your computer.
-
Navigate to the folder where you're having the problem. Right-click and select
Properties from the pop-up menu.
-
Under Properties | Security tab, click the
Advanced button, then click "Change" owner on the
Advanced Security Settings dialog (if you are already the owner, do this step anyway!), and in the resulting dialog enter whatever you want the owner to be
-
Now a new check-box appears labeled "Replace owner on sub-containers and objects"; check it.
-
Also check the box at the bottom "Replace all child object permission entries with inheritable permission entries from this object."
-
Make sure under the Permission entries grid that your current account has Full control (if not Edit or Add your account to be listed with foll control). Finally hit
Apply. This may take a while.
For reference go through the below article:
"Access Denied" or other errors when you access or work with files and folders in Windows
(Applies to Windows 10 as well)
Hope it helps. Reply to the post with an updated status of the issue to assist you further.