Plesk upgrade fails with the below error:
Installing packages upgrading Parallels Panel WebSite... MSI: Error! Critical action 'Configure Parallels Panel site...' failed: Command "D:\Plesk\\admin\bin64\websrvmng.exe" --configure-plesk-website failed with code -1073741819. Output: Failed to install 'C:\1d5be7714e280c043abe463a385f7db4\parallels\PANEL-WIN_12.0.18\dist-msi-Microsoft-2003-i386\plesk-site.msi': Fatal error during installation. (Error code 1603) ERROR: The installation of the package 'plesk-site' failed with code 1603. (upgrade: upgrading Parallels Panel WebSite...) Not all packages were installed. Please, contact product technical support.
dll files in
'C:\Windows\System32\' are missing, which prevents running of the 64-bit version of the Plesk utility.
Copy the content of
'%pelsk_bin%' folder to
'%plesk_dir%\admin\bin64' with replace option and re-run the upgrade.