Alex Ruben
How To Fix FitGirl Repack Installation Errors and Corrupted Files (2025)
If you’ve ever tried installing a FitGirl Repack game and got hit with that annoying “Setup Files Are Corrupted” message, you know how frustrating it can be. Usually, it feels like you’re just one click away from giving up and re-downloading everything, but that’s not always necessary. Sometimes, Windows security settings or antivirus tools throw a wrench in the process, messing with your files or blocking parts of the installer. This guide walks through some practical ways to fix that without going down the re-download rabbit hole.
How to Fix ‘Setup Files Are Corrupted’ Error for FitGirl Repack Games
Disable Windows Security Real-Time Protection
This is probably the most common culprit. Windows Security (or Windows Defender) can think some setup files are threats, especially if the files are downloaded from less-than-official sources. Turning off real-time protection gives the installer a better shot at running smoothly. On some setups, this helps fix false positives that quarantine files needed for installation. Just remember to turn it back on after you’re done.
- Open the Start menu and type Windows Security.
- Click on Windows Security.
- Select Virus & threat protection.
- Click on Manage settings.
- Toggle off the Real-time protection switch.
Expect that the error might clear up temporarily. On some PC setups, this step alone does the trick, especially if the antivirus or Windows Security is overly aggressive. But, of course, don’t forget to turn this back on after installing.
Launch the Game Installer & Check for Quarantined Files
This one’s simple but crucial. Sometimes, Windows Security flags and quarantines parts of your setup files, thinking they’re malicious, which obviously causes the “corrupted” message. Once you pause protections, try running the setup again.
- Navigate to your game folder where the setup.exe (or similar) file is located.
- Double-click it to start the installation.
- If that error pops up again, or if it seems stalled, head to Windows Security > Protection history.
- Look for any quarantined files related to your game. If you spot any, select it, then click Restore. Sometimes, Windows might automatically quarantine files it deems suspicious, but those are legit in this case.
Add the Game Folder to Windows Security Exclusions
If you plan to install multiple games from the same folder, or just want to avoid this issue happening again, adding the folder as an exclusion can help a lot. Windows will stop scanning files in that folder, preventing false alarms or quarantines.
- Go to Settings > Update & Security > Windows Security.
- Click on Virus & threat protection.
- Scroll down and select Add or remove exclusions.
- Hit on Add an exclusion and choose Folder.
- Navigate to your game folder, select it, then click Choose this folder.
On some machines, this step really cuts down on false positives, especially with large unpacked files or modified setup scripts.
Re-enable Security Settings & Restart Installation
Once the folder is added and you’ve checked for quarantined files, turn the real-time protection back on. Then, try running the setup again.
- Back in Virus & threat protection settings, toggle Real-time protection back on.
- Go to your game folder again, double-click setup.exe.
- Pick your language, then proceed with the installation. Sometimes, just doing this after a few adjustments fixes the problem on the second try.
Other Tips and Troubleshooting
This stuff isn’t always foolproof, but here are a couple more things that may help:
- Make sure your Windows is fully up to date. Outdated system files can cause weird issues.
- If errors keep happening, sometimes re-downloading the game files is still the easiest fix. But try these steps first—saving you more time than a full redownload.
- Always remember to re-enable antivirus protections afterward—leaving them off long-term isn’t safe.
Wrap-up
Following these steps should help you get past that corrupted file error without spending hours re-downloading. The core idea is to stop Windows Security from interfering, then make sure your setup files aren’t being mistakenly quarantined or blocked. Sure, it might seem a little roundabout, but hey, it works on a lot of setups now. Just keep in mind that every machine can be a little different, so don’t be surprised if you need to tweak these steps a bit.
Summary
- Temporarily disable real-time protection to allow setup files to run.
- Check the protection history and restore any quarantined files.
- Add your game folder as an exclusion to prevent future issues.
- Re-enable Windows Security after setup attempts.
- Try running the setup again and see if the error clears.
Final Words
If this gets one update moving or helps at least a few people get past the wall, that’s what counts. Windows security is kinda overbearing sometimes, especially with mods or repacks. Fingers crossed this helps — good luck.