Now carefully look at the new window: at the bottom will be the line 'Encrypt contents to protect data' see if it is active. On the 'Advanced Security Settings' page, you need to click the Change link, in the Owner's field. Because your Windows 10 user profile is a standard user, you must adjust some access permissions. This post also gives you access to a recovery tool for getting back your data when there is data loss during any process. Right-Click the file or folder which you need access and click on properties.

One of the responders had mentioned he restricted access to usb.