How to Clear the Steam Download Cache
The two-click fix for CS2 downloads and updates that refuse to finish
Open Steam and choose Steam > Settings from the top-left client menu, go to the Downloads tab, and click Clear Download Cache at the bottom. Confirm, then sign back in. Valve states this does not affect your currently installed games — it only makes Steam re-fetch its locally cached configuration data from Valve's servers.
When a CS2 update stalls at the same percentage every time, restarts itself in a loop, or throws "an error occurred while updating", the problem is often not the download itself. It is the local bookkeeping Steam keeps about what it is downloading.
Clearing the download cache throws that bookkeeping away and forces Steam to ask the servers again. Valve documents it as a first-line fix, and it is one of the few troubleshooting steps that carries essentially no risk to your install.
The exact steps
- Open the Steam client. Do this from the desktop client, not the web store — the setting only exists in the client.
- From the top-left client menu, select Steam > Settings.
- In the Settings panel, select the Downloads tab. The Clear Download Cache button sits at the bottom.
- Select Confirm. Steam warns you that this clears the download cache and that you will need to log in again.
- Sign back into Steam, then restart the download or update from your Library.
That is the whole procedure. If you are on the Steam Deck or Big Picture mode the wording is the same, it just lives under the same Settings > Downloads section rather than a top-left menu.
What it does — and what it does not touch
Valve's description is precise and worth quoting rather than paraphrasing loosely: clearing the download cache causes the Steam client to flush locally cached configuration data and acquire it from the Steam servers again. That is it. It is a client-side reset, not a repair of anything on disk.
| Affected by clearing the cache? | |
|---|---|
| Installed games (including CS2) | No — Valve states installed games are unaffected |
| Your CS2 config, autoexec and video settings | No — these live in the game install |
| Skins, cases and inventory | No — these are held on your Steam account, not locally |
| Friends list, screenshots, cloud saves | No |
| Your current Steam login session | Yes — you have to sign in again |
| Steam's cached download configuration data | Yes — that is the point |
The "you will need to log into Steam afterwards" part is the only real inconvenience, so have your password and Steam Guard device to hand before you click Confirm rather than after.
When this is the right fix
Valve lists Clear Download Cache under basic troubleshooting for update and installation errors, and its own summary of the feature is that it "can solve problems with games that won't download or start." In practice it is worth reaching for when:
- A CS2 update starts, gets partway, and errors out at the same point repeatedly.
- Steam reports an update is available but the download never actually begins.
- The download manager shows a queued update that will not move, and restarting Steam did not shift it.
- A game shows as needing an update immediately after you just finished updating it.
The common thread is a download that never gets going or never completes — not a game that downloads fine and then misbehaves once you are in it.
When it is the wrong fix
Clearing the cache does nothing for problems that happen after the files are already on disk. If your symptom is in this list, skip it and go elsewhere:
- CS2 downloaded fine but crashes or will not launch. That is an install or system-side problem — start with CS2 not launching and check your launch options for anything stale.
- The game runs but stutters or drops frames. Nothing about the download cache touches performance. See the stuttering fix and the FPS optimization guide.
- Missing textures, corrupt files, or crashes mid-match.Valve points at Verify Integrity of Game Files here: Library > right-click the game > Properties > Installed Files > Verify integrity of game files. Note Valve's own caveat that one or more files failing to verify is normal for most Steam games and can safely be ignored — those are local config files that should not be replaced.
- Downloads work but are slow.That is more likely a content server issue. Valve's suggestion is to temporarily switch download region under Steam > Settings > Downloads > Download Region, testing several regions other than your own.
- The install fails on write errors.Try Repair Folder under Steam > Settings > Storage, which refreshes the permissions on your library folder.
The order to work through
Valve's documented escalation for update and install errors goes roughly like this, and it is worth following in order rather than jumping to the bottom:
- Restart Steam, then restart your computer. This releases file locks and resets system state.
- Clear the download cache (the steps above).
- Repair the library folder via Steam > Settings > Storage.
- Verify integrity of game files for CS2 specifically.
- Change download region temporarily and retry.
- Reinstall Steam to the same location it is already in — Valve notes installing into the same location preserves installed games, whereas uninstalling Steam deletes game content.
If you are troubleshooting a fresh CS2 install rather than an update, it is also worth confirming your machine actually clears the bar first — the CS2 system requirements page covers that.
Frequently Asked Questions
- How do I clear the Steam download cache?
- Open the Steam client, choose Steam > Settings from the top-left client menu, select the Downloads tab, and use the Clear Download Cache button at the bottom. Steam asks you to Confirm, then you sign in again.
- Does clearing the download cache delete my games?
- No. Valve’s support documentation states the process will not affect your currently installed games. Your CS2 install, config files and downloaded maps stay on disk. The one side effect is that you have to log into Steam again afterwards.
- What does clearing the download cache actually do?
- Valve describes it as making the Steam client flush locally cached configuration data and acquire it from the Steam servers again. If that local data has gone stale or become corrupt, Steam can keep failing on a download that the servers would otherwise serve fine.
- Will it fix a CS2 update that keeps failing?
- Sometimes. Valve lists Clear Download Cache as one of the basic fixes for "an error occurred while updating" and "an error occurred while installing" messages. It is worth trying early because it is quick and non-destructive, but it is not a universal fix.
- Do I lose my CS2 settings, config or skins?
- No. The download cache is client-side download and configuration data, not game data. Your autoexec and config files live in the CS2 install folder, your crosshair and video settings are stored with the game, and your inventory lives on Valve’s servers tied to your account.
- What should I try if clearing the cache does not work?
- Valve’s own escalation order is: restart Steam and your PC, clear the download cache, repair the library folder, verify integrity of game files, change your download region, then reinstall Steam into the same location. Work down that list rather than jumping to a reinstall.