If you are clicking on an account that already exists in the launcher Click on “add new account” and put in your account information
Try suggestions in this comment in the bug report
If you are using the minecraft.net launcher, download it here
if not, download it here
Select windows 7/8 launcher here to download. this will work on windows 10/11 too.
Also note: This launcher will not work with the Bedrock edition or the Xbox game pass
powershell -command "Start-Process notepad $env:windir\system32\drivers\etc\hosts" -Verb runas
Try disabling all VPNs, Hamachi, Antiviruses, and firewalls (especially third-party firewalls like McAfee)
Malwarebytes ADWCleaner is a utility to clean a PC that is infected with malware. Download it here.
Run it, click Scan Now, once it completes the scan click "Next" and allow it to fix any issues it finds. If it finds none, allow it to run the basic repair. Restart the computer when it asks you to
If windows is pirated, please buy a license as that is the cause of the error