The problem often arises when you move a drive from one computer to another. While the drive letter (E:, F:, etc.) might stay the same, your User ID on the new computer is technically different from the User ID on the old computer. Even if your username is "John" on both machines, the underlying security ID numbers don't match.
You plug in your external hard drive. The light blinks. The computer makes the familiar "connected" chime. You open This PC , double-click the drive letter, and instead of seeing your files, you are met with a brutalist gray dialog box: external hard drive not accessible access denied
You plug in your trusty external hard drive. You hear the familiar chime of the USB connection. You navigate to "This PC," ready to access years of photos, work documents, or your media library. But instead of your files, you are met with a cold, gray wall: The problem often arises when you move a
If the drive is formatted as NTFS and connected to a new Windows installation, the owner is a now-defunct Security Identifier (SID). You must forcefully become the owner. You plug in your external hard drive
To never see "Access Denied" on an external drive again, follow this protocol: