If games stored on an external hard drive disappear, you may face a long re-download, missing mods, or uncertainty about your save files. What can be recovered depends on what happened to the drive and whether the missing data still exists. An accidentally deleted folder, a quick format, and a game library that is simply no longer recognized by the launcher require different solutions.
Start by checking what Windows can still detect on the drive. Then, if files are actually missing, you can scan the drive with data recovery software. If the game files are still present, reconnecting the existing library to Steam or another launcher may be enough to make the games available again.
First, Find Out What Is Actually Missing
Open File Explorer and select the external hard drive under This PC. Locate the folder where the games were installed.
For example, Steam normally stores installed game files inside steamapps\common within a Steam library folder. Open the affected game's folder and check whether the files are still there.
The fact that a launcher shows an Install button does not automatically mean the files were deleted. If the game files are still accessible but the launcher no longer recognizes them, skip to the section about reconnecting the game library.
Next, press Win + R, enter diskmgmt.msc, and press Enter to open Windows Disk Management. Identify the external drive by its capacity and check its partition status.
| What Disk Management shows | What it means | What to do next |
|---|---|---|
| A partition with a drive letter, recognized file system such as NTFS or exFAT, and Healthy status | Windows recognizes the partition, but this does not prove that every file is present and intact. | If folders or files are missing, stop writing new data to the drive and follow the recovery precautions below. |
| A recognized partition without a drive letter | The partition exists but File Explorer has no drive letter through which to access it. | Right-click the partition, choose Change Drive Letter and Paths, and assign the previous letter if possible or another free letter. |
| RAW in the File System column | Windows cannot recognize the partition's file system. | Recover important files before attempting repair or formatting. |
| Unallocated space, usually shown with a black bar | The storage area is not assigned to a partition that Windows recognizes. | Do not create a new volume before attempting recovery. |
If the drive does not appear in Disk Management at all, try another USB port and a compatible cable. Windows needs to detect the physical drive before normal recovery software can scan it.
Protect the Data Before Making Changes
If the checks suggest that files are missing or inaccessible, stop using the external drive for games, downloads, updates, or any other new files. New data can overwrite storage space that still contains deleted files and reduce the chances of successful recovery.
Before continuing:
- Close all games and launchers completely. A paused download does not necessarily mean the launcher has stopped writing data in the background.
- Cancel Windows prompts asking you to format the drive.
- Do not run repair tools or launcher file verification until important files have been recovered or copied elsewhere.
Disconnect the drive and consider professional data recovery if it makes unusual grinding or clicking noises, repeatedly disconnects, or stopped working after a physical impact. Repeated scans can place additional stress on failing hardware.
Recover Lost Game Files With Recovery Software
If Windows can no longer access game files, data recovery software can scan the external drive for data that still remains on it. This may help after accidental deletion, quick formatting, or file-system damage.
For this walkthrough, Disk Drill is used as the example. It supports common Windows file systems such as NTFS and exFAT and can sometimes use surviving file-system information to reconstruct original file and folder names.
That is useful for games because installations often contain thousands of files spread across many subfolders. Search and filtering tools can also help narrow the results to one installation, save file, or mod.
Disk Drill for Windows allows up to 100 MB of free recovery according to the source article. Larger recovery jobs require a paid license.
Step 1: Install Disk Drill and Select the External Drive
Install the recovery software on a different drive. Do not download or install it onto the external hard drive you are trying to recover.
Open the program and locate the external device in the drive list. Compare the name and capacity with the information you checked in Disk Management.
Select the physical drive, especially if the original partition is missing or has been reformatted. Scanning the physical device allows the program to inspect the whole drive rather than only an existing volume.
Step 2: Scan for Lost Game Files
Start a lost-data scan and allow it to complete so that all available results can be collected. Scan time depends on the drive's capacity, connection speed, and condition.
After a quick format, files may sometimes still be recoverable even if Windows shows an apparently empty volume. Files that were overwritten by a full format or later downloads cannot be restored simply by scanning the old storage locations.
Step 3: Find the Game Folder
Start with the recovered folder tree and look for the game's original installation directory.
If the original structure is available, select the entire game folder and its subfolders. Recovering only the executable file is usually not enough because games depend on many additional files.
If you only need a save or mod, narrow the results using the known file name, extension, size, or folder location.
Use file preview where supported. If original file names are missing, inspect reconstructed results for familiar file types and folder patterns.
Step 4: Recover the Files to Another Drive
After selecting the required files, choose a different physical drive as the recovery destination. You can use another working external drive or a folder on the computer's internal storage if enough free space is available.
Do not restore the recovered files to another partition on the same physical source drive. Writing to that device can overwrite data that has not yet been recovered.
After recovery finishes, open the destination folder and check which files and subfolders were restored. Keep this recovered copy unchanged while you reconnect the game installation or move save files back to their expected locations.
Get the Games Working Again After Recovery
Once the recovered files are stored on a healthy drive, they need to be made available to the game launcher again. The procedure depends on whether you recovered the full installation folder, save files, or both.
If the launcher does not recognize the recovered installation, make sure the game folder is inside the correct library location on a working drive.
In Steam, open Settings > Storage and check whether the correct library is listed. If it is missing, add the folder containing steamapps, not the individual game's folder.
If Steam still shows the game as uninstalled, choose Install and select that same library. Steam may detect existing installation files and download only the content that is missing.
If Steam already recognizes the game as installed, right-click the title and select Properties > Installed Files > Verify integrity of game files.
Back up custom mods before either process because modified installation files may be replaced.
If the recovered installation cannot be made usable, reinstall the game on the healthy drive and keep recovered saves and mods separately.
Restore Recovered Save Files
If you recovered save files from the external drive, close the game before placing a working copy in the save location specified by the developer.
Keep the expected file names and folder structure intact. If you plan to use a cloud save instead, check timestamps before confirming synchronization and choose the version containing the progress you want to preserve.
Launch the game and load the save normally. Check the character, level, missions, or other progress instead of assuming the save is healthy just because the file exists.
Some saves may also require the same mods or DLC that were installed when the save was created.
Check and Repair the External Hard Drive
Before attempting repairs, copy or recover all important files to another physical drive and confirm that they open correctly. Repair and formatting operations can change or remove data on the original drive.
If files were merely deleted accidentally and the drive otherwise works normally, repairing or formatting it may not be necessary.
If the drive opens but Windows reports file-system errors, open File Explorer, right-click the drive, and choose Properties > Tools > Error checking > Check.
Close applications that are using the drive before running the check. Windows can repair some file-system problems, but this does not repair failing physical hardware.
If the volume remains RAW, formatting may eventually be necessary to create a usable file system. Do this only after checking your recovered copies and completing all recovery attempts.
For a drive used only with Windows games, NTFS is a reasonable file-system choice.
If the space still appears as Unallocated, a new simple volume can be created after recovery is complete. Carefully verify the capacity and identity of the device before confirming any partition or format operation.
Afterward, copy a few unimportant test files to the drive, safely eject it, reconnect it, and verify that those files can still be opened.
This is only a basic functionality check. If errors or disconnects return, replace the drive rather than rebuilding an important games library on unreliable hardware.
Frequently Asked Questions
Do I need to buy my games again if the external drive fails?
Usually not. Games purchased through a digital store normally remain associated with the account that owns the license. Sign in with the account used for the purchase to access the library again.
Recovering installation files does not restore access to a lost account and does not replace a required game license.
Can I recover the external drive on another Windows PC?
Yes. File recovery normally does not require the same computer on which the games were originally installed. The games also do not need to be installed on the second PC in order to scan the external drive.
If the drive is protected with BitLocker, you still need a valid password or recovery key. Recovery software cannot bypass the encryption.
Do I need enough free space for the entire external drive?
Not for selective recovery. The destination drive only needs enough space for the files you choose to recover, plus some additional free capacity.
A complete drive image is different: you should plan for free space at least equal to the total capacity of the source drive, even if the game folders occupy only part of it.