Hello,
error 0x80070643, is a generic code meaning that the installation failed.
Open WPP and connect to your Wsus server, select the update and, on the 'Informations' tab click on the 'Id' link. This will open a window, open the folder with the GUID and copy all files/subfolders to an USB key. On the test computer, run plug the USB key and run the main file. See if the installation perform as expected.
error 0x80070643, is a generic code meaning that the installation failed.
Open WPP and connect to your Wsus server, select the update and, on the 'Informations' tab click on the 'Id' link. This will open a window, open the folder with the GUID and copy all files/subfolders to an USB key. On the test computer, run plug the USB key and run the main file. See if the installation perform as expected.