Preventing the low disc space warning on a HP Touchsmart

The HP Touchsmart comes with a 16.4GB recovery partition. Unfortunately Windows keeps warning you there is no space left. The HP site gives some useless instructions to delete files - but there are no spare, safe files to delete. Fortunately Microsoft enable you to turn off the warning:

https://support.microsoft.com/en-us/kb/555622

Determining the Windows Product ID & Product Key from an existing copy of Windows

The command

systeminfo

will tell you the Product ID.

The command

wmic path softwarelicensingservice get OA3xOriginalProductKey

will tell you the Product Key.