Microsoft account won't connect to Minecraft services on Minecraft: Java Edition Launcher

I do get Minecraft to work in windows 10 with the windows 7/8 installer.

However I am under the assumption that the windows 7/8 installer is supposed to work with both windows 7 and windows 8. - Well, I can't test the installer on windows 8 because I do not have a copy of windows 8, but I do know that Minecraft fails an authentication attempt on windows 7 with an 401 code.

Here is the important part of the log file:

<Log file start>

19:45:32.920 Environment: authHost='https://authserver.mojang.com', accountsHost='https://api.mojang.com', sessionHost='https://sessionserver.mojang.com', servicesHost='https://api.minecraftservices.com', name='PROD' 19:45:33.730 Failed to verify authentication com.mojang.authlib.exceptions.InvalidCredentialsException: Status: 401 at com.mojang.authlib.exceptions.MinecraftClientHttpException.toAuthenticationException(MinecraftClientHttpException.java:56) at com.mojang.authlib.yggdrasil.YggdrasilUserApiService.fetchProperties(YggdrasilUserApiService.java:132) at com.mojang.authlib.yggdrasil.YggdrasilUserApiService.<init>(YggdrasilUserApiService.java:44) at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.createUserApiService(YggdrasilAuthenticationService.java:153) at dxo.a(SourceFile:670) at dxo.<init>(SourceFile:424) at net.minecraft.client.main.Main.main(SourceFile:199) Caused by: MinecraftClientHttpException[type=HTTP_ERROR, status=401, response=null] at com.mojang.authlib.minecraft.client.MinecraftClient.readInputStream(MinecraftClient.java:78) at com.mojang.authlib.minecraft.client.MinecraftClient.get(MinecraftClient.java:48) at com.mojang.authlib.yggdrasil.YggdrasilUserApiService.fetchProperties(YggdrasilUserApiService.java:113) ... 5 more

<Logfile end>

i'm having the same exact prpoblem yesterday only everthing was working fine if anyone finds a fix please share it with us

I’m having the exact same issue, and I haven’t been having it at all until just now. I was playing when I got kicked off, then the server said invalid login session, then when I closed and reopened, it said it couldn’t connect to Minecraft services and the play button said play offline, and then I logged out and logged back in and now the button says play demo. If I go on the Mojang store it says I have the game and just need to download it.

I had the exact same thing happen to me yesterday. On Windows 7 (yeah, I know), but it's been fine for over a year, on the old launcher, re-installed, all that stuff. What I can tell you is that the old launcher currently and still works on my Win10 machine. Also, on my win 7 machine, an alternate launcher also works (MultiMC). Firewall and Antivirus do not seem to be blocking anything (disabled both to test), so I don't get what suddenly went wrong with the launcher.

So grab a copy of multiMC and install. I just created a 1.18.1 instance, added my MS account (it'll give you a code to grant access), pointed it at the java install that was literally in the old launcher's folders and started it up. This will download the game assets to a new folder. Copy your old saves, resource packs, and options.txt file to the new locations and good to go! This was very quick and dirty, tl;dr the manual. I'm sure there are better ways to configure that instance for example. Should also point it to a proper version of Java ( https://github.com/MultiMC/Launcher/wiki/Using-the-right-Java ). Also upped the default maximum memory allocation to 2GB. Kind of a hot mess, but it works!

I have the same issue when I tried to run the game a couple of hours ago.

I have the same issue since last evening and nothing has helped so far.

Holding my thumbs pressed for the lot of us.