My laptop will not charge when booted into Windows but will when off

[FN-GM]

what does that mean then? Motherboard?

[Ric_]

Could also be a faulty PSU... check that the correct voltage is coming out of it (hint... use a multimeter).

Also check for broken pins and a loose connection between the PSU connector and the mobo.

[FN-GM]

I have next day on site warrenty so i think i will leave pulling it apart to Dell.

Thanks