When installing the PDF, the display value DisableException Chain Validation cannot be written to the building.

\ software \ Microsoft \ windowsnt \ currentversion \ image file execution?

Options\AcroRd32Info.exe Verify that you have sufficient access to that key, or contact your support personnel.

Department.

In this case, let's see if there is a file named Msiexec.exe in the computer.

If so, please open the windows installer service in Control Panel-Administrative Tools-Services.

If not, please download a Msiexec.exe file from C:\Windows\System 32.

Then start the windows installer service, and then install the PDF reader.