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) (64:8C) [14:55:06:755]: Windows Installer installed the product. Product Name: AgentInstall-x64_16_0. Product Version: 16.0.00200.60415. Product Language: 1033. Manufacturer: Symantec Corp.. Installation success or error status: 1603.
2023-07-14 14:55:06 | CreateContentStoreWithLegacyItem | FINEST | Uninstall string did not match product code.
2023-07-14 14:55:06 | CreateContentStoreWithLegacyItem | FINEST | strProductKeyName: SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-21-583907252-796845957-839522115-13019
2023-07-14 14:55:06 | CreateContentStoreWithLegacyItem | FINEST | enumerated a subkey: SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-21-583907252-796845957-839522115-13019\Products\0774B62513C081453A2248879E22F725
2023-07-14 14:55:06 | CreateContentStoreWithLegacyItem | FINEST | RegEnumKeyEx() returned: 259
2023-07-14 14:55:06 | CreateContentStoreWithLegacyItem | FINEST | strCurProdID: 0774B62513C081453A2248879E22F725
2023-07-14 14:55:06 | CreateContentStoreWithLegacyItem | FINE | UninstallString: MsiExec.exe /X{526B4770-0C31-5418-A322-8478E9227F52}
2023-07-14 14:55:06 | CreateContentStoreWithLegacyItem | FINEST | Uninstall string did not match product code.
2023-07-14 14:55:06 | CreateContentStoreWithLegacyItem | WARNING | findProductId() failed
Windows 7, Windows 10
DLP 15.x
DLP 16.x
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 15.7 MP2 Endpoint Agent, for example, the above mentioned product ID is going to be D668E870-0F50-477C-81ED-991D9768055B
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\Product ID\InstallProperties
Note: For DLP 15.7 MP2 Endpoint Agent, for example, the above mentioned product ID is going to be D668E870-0F50-477C-81ED-991D9768055B
Please consult DLP Technical support to find out relevant Product ID's -