After a lot of reports were made by players, we have done an investigation of this error closely and found a few possible culprits that might cause this issue. Here’s a list of potential causes that might end up causing the ‘Corrupt data found’ error while attempting to launch Ground Branch: Now that you are aware of all potential causes for the issue, let’s go over the two verified fixes that other Ground Branch players have successfully used to play the game normally.

1. Delete Mods and Trigger an Integrity Check on Steam

If you’re using Ground Breach modes on your current game installation, you should really consider getting rid of them in case you can no longer launch the game.  According to a lot of affected users that were dealing with this problem, they managed to fix the ‘Corrupt data found, please verify your installation’ error entirely by deleting the corrupted mods and verifying the integrity of the files. Note: After you delete the mods, you need to verify the game’s file integrity through Steam. This process will restore all the game files that are missing and will also replace the corrupted files that the verify detect. Follow the instructions below to fix the the ‘Corrupt data found, please verify your installation’ error by doing an integrity check in Steam: If the problem is still ongoing, move down to the next method below.

2. Force Steam to open with Admin Access

If the first method didn’t work for you, the next thing you should do is investigate whether you’re dealing with a permission issue or not.  As it turns out, if Steam is not permitted to run with admin access, it won’t be able to modify and replace game files in the same efficient way when the developer releases a new patch or update for Ground Branch. This scenario will end up triggering a version mismatch which will in turn translate into the ‘Corrupt data found, please verify your installation’ error when you try to boot up the game.  Fortunately, you can ensure that this doesn’t become an issue by forcing Steam to open with admin access and modifying the default behavior of the underlying executable to ensure that this problem won’t repeat in the future:

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