Alex Ruben
How To Fix FitGirl Game Installation Issues in 2025
How to Install FitGirl Repack Games Without Errors in 2025
If you’ve been struggling with installing FitGirl repacks and keep running into those dreaded errors like ISDone.dll or Unarc.dll, you’re not alone. It’s pretty common, especially since Windows security can get overly protective, and sometimes the setup files glitch out if your antivirus is giving them a hard time. The goal here isn’t just to rush through, but to make sure the game installs properly without getting those errors that make you want to smash your keyboard. This guide walks through some practical tricks—disabling security, setting exclusions, and handling setup quirks—that actually work, at least most of the time. So, here’s what to do to get your game running without a headache.
Step 1: Disable Real-time Protection in Windows Security
This one’s kinda weird, but Windows Security often freaks out over the setup files, especially if they’re unpacked or cracked. Temporarily turning off real-time protection usually prevents those false positives from blocking or messing with the installer. On some setups, this fix works the first time, but other times, you might have to do it again later. After you’ve disabled it, proceed with the install as usual, but don’t forget to turn it back on afterward—because of course, Windows has to make it harder than necessary.
- Click on the Start menu, type
Windows Security, and open it. - Go to Virus & Threat Protection.
- Click on Manage Settings (it’s right under the threats list).
- Turn off Real-time Protection. You’ll get a pop-up asking for confirmation, so confirm.
Step 2: Run the Setup with Elevated Privileges
Sometimes, even with protection off, Windows is weird about permissions, especially if you’re installing into protected folders like Program Files. Right-click the installer and select Run as administrator. This step, often overlooked, can resolve a bunch of permissions issues that cause install failures or DLL errors. Expect fewer pop-ups about access denied and more of a smooth install process.
- Navigate to the setup file (the .exe).
- Right-click it and choose Run as administrator.
- If prompted by User Account Control, click Yes.
Step 3: Add the Game Folder as an Exclusion
This is where the real magic happens. Antivirus programs tend to trap setup or game files later on, especially if they get updated or new files are created during launch. So, after you install, add the entire game folder to Windows Security’s exclusions. That way, future conflicts are less likely, and the game runs smoother.
- Open Windows Security again and go to Virus & Threat Protection.
- Scroll down to Virus & Threat Protection Settings and click Add or Remove Exclusions.
- Select Add an Exclusion, then choose Folder.
- Navigate to your game directory (like
C:\Games\MyFitGirlGame) and select it.
Step 4: Re-enable Real-time Protection
After that’s set, don’t leave your security disabled forever. Turn it back on—this is super important. Sometimes, Windows or other security tools still decide to scan the folder later, so re-enabling helps prevent future errors or malware false alarms that could mess with your game files.
- Return to Virus & Threat Protection.
- Switch Real-time Protection back on.
Step 5: Install Visual C++ Redistributables and DirectX
Most errors crop up because the game can’t find the correct libraries it needs, like Visual C++ or DirectX. If the installer prompts you to install or repair these, don’t just click close and forget. Sometimes the Visual C++ redistributable setup fails or crashes. In that case, you can manually download the latest versions from Microsoft’s official sites (here), install them, then retry launching the game.
- If installer prompts for DirectX, agree and install it too. The DirectX End-User Runtime Web Installer is reliable.
- If Visual C++ setups crash, restarting the PC sometimes helps, but most of the time, just manually installing the latest packages fixes those issues.
Step 6: Launch the Game Properly
Once all that’s done, navigate to your game folder, right-click the main executable (.exe), and select Run as administrator. Sometimes, just doing that sidesteps permission issues. If you’re lucky, the game opens without errors, and you’re good to go. On some machines, the first launch is slower or stutters, but after that, it tends to work smoothly.
- Keep the game folder in a simple location—you know, not nested too deep or on external drives that disconnect.
Extra Tips & Common Warnings
Here’s the lowdown: always disable your antivirus during installation, then re-enable it afterward. Otherwise, setup files might get quarantined in a way that corrupts the install. If stuff fails again, double-check your directory permissions, or try running the installer in compatibility mode (right-click, Properties, then Compatibility) for older Windows versions.
Summary
- Turn off real-time protection before installing
- Run setup as administrator
- Add your game folder to exclusions
- Re-enable security afterward
- Install Visual C++ redistributables & DirectX if prompted
- Run the game as administrator for best results
Wrap-up
Following this approach usually sidesteps most common install errors for FitGirl games, at least on Windows 10 and 11. Because of course, Windows has to make things complicated just when you’re about to have fun. A lot of it comes down to permissions and security settings fighting each other in the background. Hopefully, this shaves off a few hours for someone. Fingers crossed this helps, and good luck gaming!