Unable to boot into windows after (Full) puppy SOLVED

[inearlygaveup]

I installed Puppy successfully on my old Laptop, and puppy works fine.

But I am now unable to boot into windows.
The Screen just hangs at a flashing cursor
Screen Output says

Booting windows (on /dev/sdal)
rootnoerify (hd0,0
makeactive
chainloader +1

then the cursor just sits after a # sign

Anyone any idea whats wrong, do I need to try the whole installation process again!