Why You Should Back Up Your Assetto Corsa Content Folder Before Big Changes
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AC Supply Team
If you have spent any time curating Assetto Corsa with Content Manager and Custom Shaders Patch, your real collection lives under the game's content directory and in a handful of companion folders. That library is easy to damage with one rushed update, one bad archive, or a Windows reinstall. This article explains a backup mindset that costs minutes and saves days.
What actually needs protecting
Most players care about three layers:
- Shipped and added content — cars, tracks, skins, sounds, and apps under
content. - Presets and profiles — controller FFB files, video presets, CSP/CM settings stored outside the raw car folders.
- Third-party tools — Content Manager itself, plugins, and sometimes separate shader or weather presets.
You do not need to clone the entire Steam install every night. You do need a known-good snapshot before you change something risky: a major CSP jump, a wholesale mod pack install, or migrating to a new drive.
The simplest reliable approach
Pick a backup destination with enough space: an external drive, a second internal disk, or a cloud folder that can hold multi-gigabyte archives. Then:
- Close Assetto Corsa and Content Manager so files are not locked.
- Copy the entire
contentfolder to your backup location with a dated name, for exampleAC_content_backup_2026-03-20. - Optionally export Content Manager settings from CM's own menus if you rely on custom filters, lists, or launcher profiles.
If you use CSP, note that some options tie into weather and post-processing presets. Keeping screenshots of your in-game video and CSP pages is boring but incredibly useful when you need to rebuild a look after an update.
When to run a backup
Treat these moments as mandatory backup triggers:
- Before installing a large mod pack or a repack that touches many folders.
- Before updating CSP or Content Manager across multiple minor versions at once.
- Before Windows feature updates or migrating Steam libraries.
- Before you "clean up" folders manually — deletion mistakes are the most common data loss story.
Restore sanity without reinstalling everything
If something goes wrong, you can often recover by replacing only the affected subtree — for example content/cars — from your backup rather than wiping the whole game. That is much faster than redownloading hundreds of mods from scattered sources.
Pair backups with the habit of installing one logical change at a time and launching a quick test session. Our broader troubleshooting ideas live in the troubleshooting hub and installation-focused guides.
FAQ
How large will backups be?
It scales with your library. Plan for tens of gigabytes if you collect tracks and high-detail cars.
Does Steam Cloud replace this?
Steam Cloud usually covers a small slice of profile data, not your full mod library. Treat local backups as authoritative.
Should I zip the folder?
Zipping saves space and makes cloud uploads easier, but a straight folder copy is fine for speed.
Backing up is not exciting, but it is the cheapest insurance in sim racing. Do it once before your next big change, and you will already be ahead of most mod-related panic threads.