What an Invalid Drive Error Means and Why It Happens

An invalid drive error in Epic Games Launcher means the launcher cannot find or read the hard drive where your games are stored. This usually happens when the launcher loses track of where your game files live — either because the drive letter changed, the drive disconnected, Windows updated and reassigned drive letters, or the launcher's internal file list got corrupted.

The error typically appears as a message saying something like "invalid drive" or "the specified path is invalid" when you try to launch a game or when the launcher scans your library on startup. Your games are usually still on the drive; the launcher just cannot locate them.

This is different from a drive failure. The drive itself is working — Windows can see it and you can access files on it. The problem is that Epic Games Launcher has lost the connection between its records and the actual location of your game files.

Key Takeaways

  • Invalid drive errors usually mean the launcher cannot find where your games are stored, not that the drive is broken.
  • The fastest fix is to tell the launcher where your games actually are by going to Settings > Library Locations and re-adding the correct path.
  • If you moved games to a different drive or folder, you need to remove the old location and add the new one in the same menu.
  • Repairing the launcher through Windows Settings (Apps > Apps and Features > Epic Games Launcher > Repair) fixes corrupted launcher files that cause false invalid drive errors.

Step 1: Check Which Drive Letter Your Games Are Actually On

Before you tell the launcher where to look, you need to know where your games actually are. Open File Explorer and look at the left sidebar under "This PC." You will see your drives listed with their letters — usually C:, D:, E:, and so on. Click on each one until you find the folder containing your Epic games (usually a folder named "Epic Games" or similar).

Write down the full path. For example, if your games are in a folder called "Epic Games" on your D: drive, the path is D:\Epic Games. If they are in a subfolder, the path might be D:\Games\Epic Games. You need the exact path to fix the launcher.

If you cannot find your games anywhere, they may have been deleted or the drive they were on may have failed. In that case, you will need to reinstall them rather than fix the error.

Step 2: Remove the Invalid Drive Location from the Launcher

Open Epic Games Launcher and go to the menu in the top right (three horizontal lines). Click Settings. On the left side, click Library Locations.

You will see a list of paths where the launcher thinks your games are stored. Look for any path that shows a warning icon, a red X, or says "invalid" or "not found" next to it. Click the three dots next to that path and select Remove. Confirm the removal when prompted.

Do not worry — removing the location from the launcher does not delete your actual game files. It only tells the launcher to stop looking there.

Step 3: Add the Correct Library Location

Still in Library Locations, click the Add button (usually a plus sign or "Add Library Location" text). A folder browser window will open. Navigate to the folder where your games actually are — the path you found in Step 1.

Click on the folder and then click Select Folder or Choose This Folder (the button name varies by Windows version). The launcher will add this location to its list and begin scanning it for installed games.

The scan may take a few minutes if you have many games. Let it finish. Once it is done, your games should appear in your library again, and the invalid drive error should be gone.

Step 4: Repair the Launcher If the Error Persists

If you have added the correct location and the error still appears, the launcher's internal files may be corrupted. Windows has a built-in repair tool for this. Go to Settings > Apps > Apps and Features (or Programs and Features on older Windows versions).

Scroll down and find Epic Games Launcher in the list. Click on it, then click Repair. Windows will run a diagnostic and fix any broken launcher files. This usually takes a few minutes.

After the repair finishes, close the Settings window and restart Epic Games Launcher. Check your library to see if the error is gone.

What to Do If You Moved Your Games to a Different Drive

If you recently moved your games from one drive to another (for example, from C: to D:), the launcher still has the old C: location in its memory. You need to remove the old path and add the new one.

Go back to Settings > Library Locations. Remove the old C: path (it will probably show as invalid). Then click Add and navigate to the new location on your D: drive. The launcher will scan and find your games in their new home.

If you moved the games using cut-and-paste in File Explorer, they should still work fine once the launcher knows the new location. If you moved them using a third-party tool or manually copied files, the launcher may not recognize them — in that case, you may need to reinstall.

Why Drive Letters Change and How to Prevent It

Windows assigns drive letters based on the order it detects drives at startup. If you add a new external drive, remove a USB stick, or update Windows, the letters can shift. A game stored on D: might suddenly show as E:, and the launcher will not find it.

To reduce this risk, keep your games on your main internal drive (usually C:) if possible. If you use a second internal drive or external drive, avoid unplugging it while Windows is running, and do not add or remove other drives frequently.

If you use an external drive for games, consider using a dock or hub that keeps the drive in the same physical port. This makes it less likely that Windows will reassign the drive letter.

Frequently Asked Questions

Will removing a library location delete my games?

No. Removing a location from the launcher only tells the launcher to stop looking there. Your actual game files stay on the drive. You can always add the location back later, and the launcher will find the games again.

What if I do not know where my games are stored?

Open File Explorer and use the search function (top right) to search for "UE4Game" or "Binaries" — these are folders that Epic games typically contain. You can also search for the name of a specific game you know you have installed. Once you find one game folder, you have found where all your games are.

Can I move my games to a different drive to fix this error?

Moving games can fix the error if the current drive is failing or inaccessible, but it is not the fastest solution. It is usually faster to just tell the launcher where the games already are. Only move games if the drive itself is having problems.

Does repairing the launcher delete my games or settings?

No. Repairing only fixes the launcher program itself, not your game files or your account settings. Your login information and library will stay the same.

What if the error comes back after I fix it?

If the error returns repeatedly, your drive may be failing or disconnecting intermittently. Run a drive health check using a tool like CrystalDiskInfo (free) to see if the drive is reporting errors. If it is, back up your games and consider replacing the drive.