Originally posted by Acetyl:

Last client version to support Windows 7 is now unable to handle steam's latest compression scheme, giving "corrupt download" errors. This bricks your games if you leave offline mode and it detects an update. Clearing cache and relaunching in offline mode resolves it, however it is not ideal. An external commandline tool should exist to download or patch games, independent of chromium webapp nonsense.

Originally posted by Mad Scientist:

Originally posted by Acetyl:

Last client version to support Windows 7 is now unable to handle steam's latest compression scheme, giving "corrupt download" errors. This bricks your games if you leave offline mode and it detects an update. Clearing cache and relaunching in offline mode resolves it, however it is not ideal. An external commandline tool should exist to download or patch games, independent of chromium webapp nonsense.

Win 7 is no longer supported nor has been for a while.

Dual boot or install a primary compatible OS.

Originally posted by JimDeadlock:

There is steamcmd - I don't know if it works with games in general or only servers:

https://developer.valvesoftware.com/wiki/SteamCMD