The trial version of Acrobat Pro won't install. Instead I get an error message once the installation reachest approx. 84%.

This is the error message I get:

- 0 fatal error(s), 3 error(s)

----------- Payload: Acrobat Professional 11.0.0.0 {23D3F585-AE29-4670-8E3E-64A0EFB29240} -----------

ERROR: Error 1921.Service Print Spooler (Spooler) could not be stopped. Verify that you have sufficient privileges to stop system services.

ERROR: Install MSI payload failed with error: 1603 - Fatal error during installation.

MSI Error message: Error 1921.Service Print Spooler (Spooler) could not be stopped. Verify that you have sufficient privileges to stop system services.

ERROR: Third party payload installer AcroPro.msi failed with exit code: 1603