Unable to update Plesk: The installation of the package failed with code 1603

Symptoms

• Unable to update Plesk. One of the following errors can be found in Plesk installer:
  

  CONFIG_TEXT: MSI: Error! The specified account already exists.
  Failed to install 'C:\ParallelsInstaller\parallels\PANEL-WIN_17.0.17\dist-msi-Microsoft-2003-i386\plesk-l10n_mu013.msi': Fatal error during installation. (Error code 1603)
  ERROR: The installation of the package 'plesk-l10n' failed with code 1603. (upgrade: Upgrading Plesk additional locales...)
  Not all packages were installed.
  Please contact product technical support.
  exit status 1

  OR

  CONFIG_TEXT: Execution failed. Command: ai.exe Arguments: Array ( [0] => --select-product-id [1] => panel [2] => --select-release-current [3] => --upgrade-installed-components ) Details: ERROR: The installation of the package 'plesk-db-upgrader' failed with code 1603. (upgrade: Upgrading Plesk DB upgrader...) Not all packages were installed. Please contact product technical support.

  Note: The package name in the output may vary

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

  CONFIG_TEXT: MSI (04): Property(S): SourcedirProduct = {AA541393-EA1C-4BA1-99D7-41CDE40110BF}
  MSI (04): === Logging stopped: 1/24/2017 14:10:41 ===
  Package action: InstallMsiPackage, package: plesk-l10n, exec time: 88 sec. desc: file='C:\ParallelsInstaller\parallels\PANEL-WIN_17.0.17\dist-msi-Microsoft-2003-i386\plesk-l10n_mu013.msi', command-line='REINSTALL=ALL REINSTALLMODE=vmscd ADDLOCAL=ALL ALLUSERS=1 ARPSYSTEMCOMPONENT=1 REBOOT=R AUTOINSTALLER=1'
  Failed to install 'C:\ParallelsInstaller\parallels\PANEL-WIN_17.0.17\dist-msi-Microsoft-2003-i386\plesk-l10n_mu013.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-l10n' failed with code 1603. (upgrade: Upgrading Plesk additional locales...)
  Not all packages were installed.
  Please contact product technical support.

  Or

  CONFIG_TEXT: MSI: Error! Error 1714.The older version of MySQL Connector/ODBC 3.51 cannot be removed. Contact your technical support group.
  ...
  MSI (09): Application: {C0EED196-57F3-46B7-AC3B-B2DD45B01A43}, Command line: UPGRADINGPRODUCTCODE={216B40EF-9DFE-4207-A7C1-0DBE818ACE82} CLIENTPROCESSID=4436 CLIENTUILEVEL=3 MSICLIENTUSESEXTERNALUI=1 REMOVE=ALL
  ...
  Action '' failed with error 1603(0x00000643) Error: The installation of the package 'mysql-odbc' failed with code 1603. (upgrade: Upgrading MySQL ODBC 3.51 driver...) Not all packages were installed. Please contact product technical support.

• Previously the content of the folder C:\ParallelsInstaller was manually cleaned up (some .msi packages were removed)

Cause

Resolution

Workaround

If update is not possible for some reason you may try the following