引用自 HiccupJul：

Ah I see. Well I might want to keep it on the online PC, so I can sync it to the offline PC when I buy new games. I guess I'd need to make sure not to overwrite whatever files stores achievements though.

BTW, is it possible to copy the achievements file from the offline PC to the online one, in order to register them to my Steam account?

In that case, after you're done, I recommend logging out then logging in on the online PC.

I don't know how achievements are kept track of, I'd have to look into that. When in doubt, try to copy data the aforementioned folders (use common sense, you wouldn't need all of them if you just want achievement data transferred).

引用自 HiccupJul：

引用自 lightwo：

https://blog.lightwo.net/steam-client-downgrades-survival-kit.html#scenario-steam-install-deletedcorrupted

This also takes care of your login information and cached information about your library. In particular, the step that has you copy appcache, config, steamapps (optional), userdata and local.vdf.

Thanks. So there's nothing in the register or anything to-do with hardware IDs that prevent this? But maybe what I read elsewhere about that just wasn't true.

Also, I don't understand the last step: "7. Making sure that Steam works on the unsupported device, uninstall Steam from the supported device to remove leftovers, if needed"

No hardware ID to worry about, especially if you're offline. Even if you do consider going online, the files starting with ssfn and config/loginusers.vdf (last logged in as desired user) should be enough by themselves.

As for step 7, here's another take: If you made sure that Steam works on the offline PC, remove Steam files from the "helper" device. You won't need them any more anyway.

https://blog.lightwo.net/steam-client-downgrades-survival-kit.html#scenario-steam-install-deletedcorrupted

This also takes care of your login information and cached information about your library. In particular, the step that has you copy appcache, config, steamapps (optional), userdata and local.vdf.

A lot has changed since the latest announcement, so...

• The guide has been moved to my blog
  
• Workarounds and Tricks section
  
• More sections here and there
  
• Added disclaimer advising for better long-term changes for outdated OS users

Since I linked someone to this thread, I thought I'd chime in and link the instructions for VxKex in order to be able to run newer Steam versions:

https://blog.lightwo.net/steam-client-downgrades-survival-kit.html#vxkex-windows-7

It appears that the resulting installation is riddled with its own issues, but downloads are possible from the UI itself. It is therefore recommended to make 2 Steam installations; one supported by the OS, and another using Windows 10 builds of Steam for downloading games.

I suspect you haven't opted out of Steam Client Beta, so if that's the case, do it before downgrading. I've not archived betas, or any channels other than mainline for that matter.

Can you redirect Steam output to a file and send it here? I've not had to look at Steam logs for a good minute, but redact anything you need, or post only parts you suspect may indicate the issue.

引用自 kairos_kruasan：

Hi, all my online functions and chat don't work, for example, it tells me: "an unexpected error occurred while receiving information from Steam" and in the chat there is just a black screen with a keyboard, I didn't find a discussion on my topic, so I wrote here
https://imgur.com/a/HVl74Cw

What client version are you on?

引用自 lessthanrichy：

Thank you! Appreciate your help! Thought I was screwed lol.

This is where I put the cfg file. Does it look okay to you?
https://imgur.com/SUmpoNo

I also set the loginusers.vdf settings to "1" and the file to read-only but when I launch steam and click go online it still works I was hoping it would do nothing in case I accidentally clicked it. Not sure what could be wrong there.

But ya hopefully like you said hope it will just stay on latest available/compatible build for Catalina.
Out of curiosity is that what happened with Windows 7/8?
Anyone on an older MacOS I wonder be interesting to know what happened there.

You're welcome!

Config looks good to me.

The file is set to read-only so that in case you accidentally make the client go online, the next time you start it, it will still launch offline. Although if you did manage to go online without an issue, you may as well continue going online until that stops working.

Yep, basically the same thing. Chromium no longer supports these OSes and Valve has been prolonging the upgrade to newer Chromium versions for a while now, but now they've upgraded it, support for these OSes has been axed.

If you already have an existing Steam installation, it should be enough, yes (though you could get logged out, but refer to the section linked later and you should be fine). Though even if you updated, most likely nothing bad would happen, you'd simply be stuck to the latest available build that is compatible with your OS.

I can't guarantee that updating will work flawlessly, it is possible they messed something up as they did the client on Windows XP, but it has worked for 7/8/8.1 recently.

To add to that, refer to "Keeping the client offline forever"[blog.lightwo.net] for the client to start up faster, as normally it tries to connect to Steam until it times out, which takes a little while.