Plesk is inaccessible after installing updates: Unable to get administrator password: The system cannot find the file specified. (Error code 2)

Symptoms

After installing Plesk updates, it is not possible to access Plesk. The following error is shown instead of login screen:

CONFIG_TEXT: ERROR: Exception: Unable to get administrator password: The system cannot find the file specified. (Error code 2) at Unable to connect to pipe \\.\pipe\P_4755d610-937d-498b-a70f-6ee61941f472
at (Con::ClientOverlappedPipe::create line 503)
at getPassword('pwd')(PleskSrvClient::getPassword line 218)
at (zif_get_admin_password line 277) (Helper.php:68)

Also, the following errors can be found in the C:\ParallelsInstaller\autoinstaller3.log file:

CONFIG_TEXT: MSI: Error! Error writing to file: C:\Program Files (x86)\Parallels\Plesk\admin\bin\reconfigurator.exe. Verify that you have access to that directory.
MSI (01): Error writing to file: C:\Program Files (x86)\Parallels\Plesk\admin\bin\reconfigurator.exe. Verify that you have access to that directory.

Failed to install 'C:\ParallelsInstaller\parallels\PANEL-WIN_17.5.3\dist-msi-Microsoft-2003-i386\plesk-service-node-utilities_mu021.msi': Fatal error during installation. (Error code 1603)
Action '<install-msi-package command-line="REINSTALL=ALL REINSTALLMODE=vmscd ADDLOCAL=ALL ALLUSERS=1 ARPSYSTEMCOMPONENT=1 REBOOT=R AUTOINSTALLER=1" />' failed with error 1603(0x00000643)
Error: The installation of the package 'plesk-service-node-utilities' failed with code 1603. (upgrade: Upgrading Plesk Utilities...)
Not all packages were installed.
Please contact product technical support.

Cause

Failed update of Plesk Utilities (plesk-service-node-utilities) package.

Resolution

1. Connect to the server using RDP .

2. Open Command Prompt and launch Plesk Installer in the interactive console mode:

   C:\> plesk installer --console

3. On the Main components list for Plesk screen make sure that Base packages of Plesk component is marked for update (with '*' sign) and proceed with the update.