How to Clear Steam Download Cache

When Should You Clear the Cache?

Steam's download cache stores temporary update data, CDN routing info, and session tokens. When it corrupts, you may see stuck downloads, endless "Connecting" screens, failed updates, or games that won't launch after patching. Clearing the cache is safe — it does not delete installed games.

Step 1 — Open Steam Settings

Launch Steam and sign in. Click Steam in the top-left menu bar, then choose Settings (or Preferences on macOS).

Step 2 — Navigate to Downloads

In the Settings window, click Downloads in the left sidebar. This panel controls bandwidth, region, and cache management.

Step 3 — Clear Download Cache

Click the Clear Download Cache button at the bottom of the Downloads page. Steam warns that you'll need to sign in again — click OK to confirm.

Step 4 — Sign Back In

Steam closes and relaunches automatically. Enter your username and password (and Steam Guard code if prompted). Your library and installed games remain untouched — only cached download metadata is removed.

Step 5 — Retry Your Download or Update

Return to the game that was failing and resume or restart the download. Steam fetches fresh CDN routing information and rebuilds the cache from scratch.

Step 6 — Manual Cache Cleanup (Advanced)

If the built-in button doesn't help, close Steam fully and delete contents of C:Program Files (x86)Steamappcache manually (do not delete the folder itself — only its contents). Restart Steam afterward. This is more aggressive but achieves the same result.

Step 7 — When to Clear Cache Again

You do not need to clear the cache regularly — only when symptoms appear. After a major Steam client update, a Windows upgrade, or switching networks (home to hotel WiFi), a one-time cache clear can prevent login loops. If problems return frequently, check antivirus logs — repeated write blocks to the cache folder often cause corruption that clears temporarily but returns on the next download.

Cache Clear Summary

• Open Steam → Settings → Downloads
• Click Clear Download Cache
• Sign back in when Steam restarts
• Retry the failed download or update
• Manually clear appcache contents if needed
• Clear again only after client updates or network changes