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AV software hooks very deep into user systems and can affect disk and network operations which will cause issues with Steam.Some games also use copy protection technology that can appear as malicious software to an AV scanner, resulting in potential false-positive alerts.This is a common type of error that can occur any time a game is updated or installed on Steam The error results when Steam is not able to complete the installation.The specific reason for the error will be shown in the parenthesis at the end of the error message.Navigate to your Steam - Repair Folder Sometimes files on hard-disks and other storage devices become corrupted because of bad hardware, software crashes, power surges etc.
These programs and services can run in the background and are typically associated with software like Anti-Virus, ad-blockers, web-optimizers, firewalls, system cleaners, recording software, proxies, performance boosters etc.
Steam - Add new Library folder If the error is still occurring after following the fixes outlined above, it is possible that something outside of Steam is responsible.
Because these are advanced troubleshooting steps, we highly recommend that you contact a local IT support specialist in your area for further assistance with these steps. Network hardware can get into slow/broken state after running for a long time.
Some Internet providers cache or compress online data to save bandwidth (especially cellphone networks). It is a good idea to test the issue by connecting to an entirely different network, preferably from a different service provider.
All storage drives/devices can be affected by file corruption, especially if it is older or running under a heavy load.