If you have Adobe Pro on RDS installed but not all users have licenses, you need to have reader activated.
You can try install reader also. But the solution is simple.
Add the regkey below
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Adobe\Adobe Acrobat\DC\FeatureLockDown:“bIsSCReducedModeEnforcedEx”=dword:00000001
Now if a user has a license, Adobe Pro is active,
if a user dont have a license, reader is active.
Source: pdf – Installing Adobe Pro and Adobe Reader on the same machine – Super User
Issues with Updating: How to Fix Error Applying Transforms Error Issue
(How to Fix Error Applying Transforms Error Issue)
Step 1. Click on the Windows Start button on your taskbar and type registry editor in the Windows search box.
Step 2. Select Registry Editor in the search result displayed in the Best match.
Step 3. Navigate to the path below using the folders in the left pane of the Registry or copy-paste the location in the navigation bar.
HKEY_CLASSES_ROOT\Installer\Products
Step 4. Now, right-click on the Products key and choose the option Find in the context menu to open the search box.
Step 5. In the Find window, check the boxes next to Keys, Values, and Data in the Look at section.
Step 6. Enter the name of the application that is raising the Error applying transforms message in the text box next to Find what in the window.
Step 7. Tap on the Find Next button to search for the registry value associated with the application.
Step 8. Once the search completes, it will automatically take you to the registry key for the problematic application.
Step 9. With the registry key selected in the left pane, double-click on the Transforms entry on the right side to open the Edit String window.
Step 10. Delete the value that is present in the Value Data field.
Then, click on OK.
Note: If this error was raised while uninstalling the application, then right-click on the Transforms key and choose Delete to remove the key from the Registry.
Step 11. Reboot your PC after closing the Registry.
Step 12. Check if the error still appears after the system startup.