When you install Windows from a Microsoft DVD on a factory-built computer (instead of using factory recovery discs), it's normal for a lot of the manufacturer's drivers to be missing because they are not on the Microsoft DVD.
The drivers are included with the factory pre-installed Windows and they are also on the HP recovery discs, but not on the Microsoft DVD.
You have to go the HP Support website
, select your PC model, then download the missing drivers from there and install them.
For United Kingdom computer models the support website is here: http://www8.hp.com/uk/en/support-drivers.html
If your PC is not a UK model, change the country by clicking the link at bottom-left of page before going any further.