|Thankyou very much for your suggestions but it's still there. I've resorted to just dragging the box to the bottom of the screen and ignoring it.|
I restarted the laptop in safe mode and went into the control panel again, but there were no HP products to remove.
I've typed msconfig into the 'run' menu and unchecked the only HP item on the startup tab, but the pop up's keep on coming.
The 1st one I get is a 'windows installer' message immediately followed by an 'HP Product Assistant' message with a progress bar.
Then I get a bigger HP Product Assistant message saying 'Te feature you are trying to use is on a network resource that is unavailable.
Click OK to try again, or enter an alternative path to a older containing to installation package 'hpproduct.msi' in the box below
Use Source: C:\DOCUME~1\EMMATH~1\LOCALS~1\Temp\7zS6AE4\setup\hpproductassistant\'
Options OK, Cancel and Browse. Clicking OK & Cancel has been useless.