Symptoms

Parallels Tools fail to install.

Logs

The following error messages can be found in C:\Windows\Temp\parallels-tools-setup.log:

Failed to connect to Windows Update service! (HRESULT = 80004002)

Failed to connect to Windows Update service! (HRESULT = 800700A4)

Cause

• Windows Update components are corrupted.
• Windows system is corrupted.

Resolution

1. Install Windows Updates using the following Microsoft knowledgebase article: Install Windows updates in Windows 7

2. Install Parallels Tools using the manual installation method.

3. If the issue still persists and/or there was a problem in Windows update process, repair Windows system:

   • Start the virtual machine;
   • Go to Start, type cmd and hit Return/Enter;
   • Right-click on cmd > Run as Administrator;

   • Type in:

     sfc /scannow
     

   Then hit Return/Enter.

4. If the system cannot be repaired or system scan fails to start, refer to KB 121140 for details on repairing Windows installation.