The WinUpdatesView tool allows you to view the history of installed Windows updates on your local system, remote system, or external drive. In order to view the installed updates on a remote computer, you must have full admin access (Including Admin share, like \\192.168.0.100\Admin$ ) to the remote computer. If you don't know how to configure the remote machine correctly, the following Blog post may help you: How to connect a remote Windows 7/Vista/XP computer with NirSoft utilities

Assuming that you have full admin access to the remote computer, here's how to view the installed updates list remotely:

1. In WinUpdatesView, press F9 to open the 'Advanced Options' window.
2. In the 'Load From' combo-box choose 'Remote Computer'.
3. Type the IP address or name of the remote computer.
4. Optionally, you can choose to temporarily stop the Windows updates service if the database file is locked. However, you should not use this option while updates are downloaded or installed on the remote computer, because stopping the Windows updates service will disrupt the update.

   

5. Press the Ok button, and after a few seconds you should see the list of Windows updates installed on the remote computer:

   

Optionally, you can also read the installed Windows updates on the remote PC from command-line and then export the data to a file.
For example, the following command reads the installed Windows updates on remote computer 192.168.0.205 and then exports the updates list to .csv file:
WinUpdatesView.exe /LoadFrom 4 /StopWinUpdatesService 1 /ComputerName 192.168.0.205 /scomma "c:\temp\updates-list.csv"