Set:

unmanaged PC

Windows 10

MS Outlook 2019

Microsoft Exchange E-Mail

Problem:

cannot login with d\uaccount, or...

no login window, or...

no connection possible, or...

something in that vein.

Solution:

Click on the Windows "Start" button

Type "control"

Open the system control panel

Search for and open "Mail..."

Choose "Accounts"

Delete the account

Close the "Mail" window

Open your Web-Browser and 

go to swd.univie.ac.at and

log in with your uaccount

go to free software

go to Microsoft Tools

right-click on the *.reg file and 

choose "download link as"

save the *.reg file.

do the same for the *.txt file.

After downloading the files you can take a look at the text file and read the manual.

Alternatively, right click on the *.reg file and choose "merge", when asked to, click "OK", or "YES".

start Outlook. 

Outlook should start normally now.

reboot the PC

start Outlook

Problems after the FIX:

Outlook may just work fine now, or you geht an error message in the form of "VC**** not installed, cannot open Outlook..."

If you get such an error message

click the Windows "Start" button

type: control

open the control panel

open "Programs"

search for "Visual Studio C+ 64 bit" or "Visual Studio *** 64 bit"

right click on the software

click on "change"

click on "repair"

wait for the process to finish 

start Outlook

Outlook should work now

END