Plesk can not repair

[ThierryT]

When I want to repair plesk by: plesk Reconfigurator

Or plek.msi in C: \ Program Files (x86) \ Parallels \ Install \ 100505.14

I have the error: Access Denied (error code 5) at Unable to connect to pipe \ \. \ Pipe \ psapipe

Thank you all.

Thierry