[Fix]- Error: Unable to sign-in to MS Teams.

Error: Unable to sign in to MS Teams.

desktop-60f8a082-f64d-43fa-b141-335b614721e1

Error code - 80080300

There's a more permanent way to sign in to Microsoft Teams. If you're having trouble completing the process, talk to your IT admin

Solution.

%localappdata%\Microsoft\Teams\current\Teams.exe

Right click Teams.exe and choose properties > in the Compatibility tab, and check “Run this program in compatibility mode for Windows 8”. 

Then, restart Teams and try again.

[Fix] - Adobe Acrobat Application installation issues

 

Adobe Acrobat Application installation issues

Download the adobe cleanup tool and clean all Adobe application and again install it from the software center or company portal

https://labs.adobe.com/downloads/acrobatcleaner.html

http://labsdownload.adobe.com/pub/labs/acrobat_ittools/AdobeAcroCleaner_DC2015.zip

Uninstall the adobe acrobat application from the programs and features.

Deleted all adobe folders from Appdata.

Ran the adobe cleanup tool and remove all adobe acrobat.

And again tried to install it from the software center or company portal.

[Fix] - Encryption issue on Outlook after renew the smart card PKI certificate:

Encryption issue on Outlook after renew the smart card PKI certificate:

HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\outlook\security]

"AllowPrivateKeyCheck"=dword:00000000

To do this please search regedit.exe, go to HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\Security, then right click on Security folder > New > DWORD (32 bit) Value

> rename this New Value with AllowPrivateKeyCheck

The default value is 0x00000000 and it should be left this way. If the key already exists and the value is not 0, please set it on 0.

Then close Regedit, restart Outlook and try again.

Please enter to the user's PC with admin rights and clean up the certificate cache by doing the following*:

• Close Outlook and any other browsers and applications

• Remove the smart card from the card reader

• Remove folders in C:\Windows\System32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache

• Remove folders in C:\Windows\Syswow64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache

• Remove folders in C:\Users\%Username%\AppData\LocalLow\Microsoft\CryptnetUrlCache

• Remove files from C:\Users\%Username%\AppData\Roaming\Microsoft\SystemCertificates\My\Certificates

• Remove files from C:\Users\%Username%\AppData\Roaming\Microsoft\SystemCertificates\My\Keys

• Restart the computer, insert the PKI card and try again

*Please note that if the user has installed any soft certificates, these have to be reinstalled after cleaning the certificate cache.

Please check if the correct certificates are displayed in  Outlook Options -> Trust Center -> Trust Center Settings.. -> Email Security -> Settings 

Click on Choose ->Select a certificate window will open-> click on ->Click here to view cert properties->click on Install cert.

Click on OK.-> Restart Outlook.