After downgrading Windows Vista to XP the only driver I didn’t have success to install was the webcam one.
On my dv6299 ea (dv6000 series) the webcam is identified by the 05CA&PID_1810&MI_00\6&1F6A7C80&0&0000 string.
There is no webcam driver for XP looking on HP site, so I made many tries before gettings the device work.
The solution is pretty simple:
- download the drivers for Vista from HP site
- unpack with WinRAR or other compression tools
- go to the sp34746\WCAMR\driver\ directory
- doubleclick on DPInst32.exe and install the drivers
It worked on my pc, hope it will be useful for you too 🙂