← Back to tutorials
Getting Started

Installing Your Edits Into the Game (MediaPC)

How to package an edited car and load it via the MediaPC folder — and the two mistakes that cause infinite loading screens.

10 min read

Editing a file is only half the job — the game has to load it. Almost every "my game is stuck loading forever" report traces back to one of the two mistakes below.

Use MediaPC, not the original files

Do not overwrite the game's original car ZIPs. Instead, load your edits through the mediapc folder, which the game reads in preference to the base files.

  1. Create a cars folder inside your content\mediapc\ directory if it doesn't already exist.
  2. Place your edited car ZIP there, using the same filename as the original.
  3. Launch the game.

WARNING

Overwriting the base game ZIP directly tends to crash on start-up, and a malformed MediaPC ZIP causes an infinite loading screen. If you have already broken your install, verify integrity of game files to restore the originals.

Mistake 1: zipping the folder instead of its contents

This is the single most common cause of a broken car.

When you re-zip an extracted car folder, select all the files inside the folder and add *those* to the archive. Do not zip the car folder itself.

  • Correct: opening the ZIP shows the car's files directly.
  • Wrong: opening the ZIP shows a single folder, which contains the files.

Mistake 2: an incomplete ZIP

The ZIP must contain every file the original had — not just the ones you changed. A common workflow is:

  1. Extract the original car ZIP in full.
  2. Modify only the files you need.
  3. Re-zip the complete set of files (see the structure rule above).
  4. Drop the result into content\mediapc\cars.

Leaving only your modified files in the archive will hang the game on the loading screen, because MediaPC expects the full set.

TIP

Keep an untouched copy of the original ZIP. Reverting is then just a matter of restoring that file, with no need to re-verify the whole game.

Source

Procedure and failure modes assembled from repeated Discord troubleshooting threads; the zip-structure fix is the confirmed resolution of a user's infinite-loading problem.

Written against Studio v0.9.2.2. Spotted a mistake? Corrections are welcome on the Forza Mods Discord.

Want to contribute a tutorial?

Guides are community-written. Share yours on the Discord or open a pull request on GitHub.