Upgrade of current DLP Endpoint agent to a next major release is failing with "Installation success or error status: 1603" error.
You are seeing below mentioned lines in the upgrade log file:
MSI (s) (44:D8) [16:02:45:451]: Windows Installer installed the product. Product Name: AgentInstall64. Product Version: 14.0.2000.01056. Product Language: 1033. Manufacturer: Symantec Corp.. Installation success or error status: 1603.
2017-01-09 16:02:45 | CreateContentStoreWithLegacyItem | FINEST | RegEnumKeyEx() returned: 259
2017-01-09 16:02:45 | CreateContentStoreWithLegacyItem | FINEST | strCurProdID: 00002105501100000000000000F01FEC
2017-01-09 16:02:45 | CreateContentStoreWithLegacyItem | FINEST | UninstallString value not found for this key.
2017-01-09 16:02:45 | CreateContentStoreWithLegacyItem | FINEST | strCurProdID: 00002109210000000000000000F01FEC
2017-01-09 16:02:45 | CreateContentStoreWithLegacyItem | FINE | UninstallString: MsiExec.exe /X{90120000-0012-0000-0000-0000000FF1CE}
2017-01-09 16:02:45 | CreateContentStoreWithLegacyItem | FINEST | Uninstall string did not match product code.
2017-01-09 16:02:45 | CreateContentStoreWithLegacyItem | FINEST | strCurProdID: 00002109511090400000000000F01FEC
2017-01-09 16:02:45 | CreateContentStoreWithLegacyItem | FINE | UninstallString: MsiExec.exe /X{90120000-0115-0409-0000-0000000FF1CE}
2017-01-09 16:02:45 | CreateContentStoreWithLegacyItem | FINEST | Uninstall string did not match product code.
2017-01-09 16:02:45 | CreateContentStoreWithLegacyItem | WARNING | findProductId() failed
Windows 7, Windows 10
This issue is caused if below mentioned string values are missing from windows registry hive:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{Product ID}
Note: For DLP 12.5 Endpoint Agent, the above mentioned product ID is going to be B29DE059-FEC4-4304-96BB-50308729BEDE
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\Product ID\InstallProperties
Note: For DLP 12.5 Endpoint Agent, the above mentioned product ID is going to be 950ED92B4CEF403469BB05037892EBED
Please consult DLP Technical support to find out relevant Product ID's