Hi Mike.
I notice you say you had to reinstall win10.Therefore you will also need to reactivate your birddog.
As far as I can remember it is like this ( if you mess it up you have to wait 2 weeks before you can try again.
Install the birdog running the exe file as administrator.
Keep your eyes open for the hardware fingerprint and write it down exactly as shown.
You will also need your name as you used in the prior registration.
Now follow this
To begin using this product you need to proceed the following steps:
1. Download "Pitts Special S1/S2" on our website:
2. Run "piits.exe" file on your computer and follow the instructions.
3. In the end of installation process a security key will be required.
4. Select OK to start activation process.
5. The next window will appear requesting to enter registration name and key.
6. Copy "Hardware Fingerprint" and go to the following unique link:
Note, that you can use your activation link ONLY once. You will be able to request new activation link ONLY two weeks after your 1st activation.
7. Paste "Hardware Fingerprint" and your full name in the fields.
Note, that Name field should contain only Latin a-z letters and no any other symbols.
Hardware Fingerprint should contain eight alphanumeric symbols divided with a dash (Ex. 1234-ABCD).
8. After submitting this information you will receive your unique security key.
9. Copy and paste your key in the registration window and press OK.
10. Your activation is complete.
Cheers Chris
ps obviously this is for the pitts but it is the same for all sibwings products