ArcGIS Pro 3.3 Couldn't sign you in

[ToddFagin]

Earlier today, I had no problems. Now I am getting this. I can still sign-on with a 3.2.2 on a different computer. This is maddening.

[ToddFagin · Accepted solution]

Though far from ideal, I did a complete uninstall of 3.3 and reinstalled 3.2 plus the patch. I am back to 3.2.2, where I will remain for a while, and everything appears to be running properly. 

[MeleKoneya]

How weird I was working just fine earlier but started getting messages in 3.3 that I wasn't connected and ArcGIS Pro wasn't licensed.   Tried it on my home computer and had no problems using the same AGOL AD logins I tried on my work computer.     I am going to contact support.

[FredericPoliart_EsriAU]

If you uninstall, make sure the uninstall deleted everything in here:
C:\Program Files\ArcGIS\Pro
c:\Users\Administrator\AppData\Local\Microsoft\Windows\INetCache\ArcGISUpdate\ArcGISPro\ArcGISUpdate.exe

RegEdit Delete everything in:
HKEY_LOCAL_MACHINE\SOFTWARE\ESRI\ArcGISPro
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\RADAR\HeapLeakDetection\DiagnosedApplications\
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\bam\State\UserSettings\
HKEY_USERS\S-1-5-21-4090609309-3682410107-983408365-500\Software\Classes\Local Settings\Software\Microsoft\Windows\Shell\MuiCache
HKEY_USERS\S-1-5-21-4090609309-3682410107-983408365-500\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.aprx

most importantly delete here:
HKEY_USERS\S-1-5-21-4090609309-3682410107-983408365-500\Software\ESRI\ArcGIS Online For Pro\
^^ that's where all your portal logins are saved

[MeleKoneya1]

@FredericPoliart_EsriAU  Thank you for the follow up.    I did work with support and as you noted this key was most important to getting my log in working again "ESRI\ArcGIS Online For Pro\ "      If others run into this issue take note of this registry key.   We ended up renaming it and then when ArcGIS Pro restarted, the key was recreated.