Hi,
Exchange 2013 CU22 setup failing on error 1603:
Installing product C:\Install\Ex13CU22\exchangeserver.msi failed. Fatal error during installation. Error code is 1603. Last error reported by the MSI package is 'Error reading from file: C:\Install\Ex13CU22\Setup\ServerRoles\ClientAccess\Sync\Bin\Microsoft.Exchange.AirSyncHandler.dll. Verify that the file exists and that you can access it.'.
Btw. the file Microsoft.Exchange.AirSyncHandler.dll is in installation directory, PS execution policy is unrestricted, checksum of the CU file matches - I tried to redownload the CU and still the same error :-(
Windows Server 2012 R2, .Net Framework 4.7.2, previous CU is 21.
Do you have any ideas how to solve this?
thanks
Pavel