Will I Have To Uninstall BD Internet Security Before Upgrading From Win 8.1 to Win 10?

Hello.

If you don't want to have any troubles with the installation and the activation of the Bitdefender program after upgrading from Window 8.1 to Windows 10, just follow the steps below.

First, you need to remove the device for which you wanna upgrade Windows from your Bitdefender Central account, by following these steps:

Then, you should uninstall the Bitdefender program from that device, by following these steps:

That's all.

After that, the device will be NOT listed in your Bitdefender Central account as a device using Bitdefender program.

Finally, you can now install the Bitdefender program on the same device, by following these steps:

If you follow the steps, i'm sure you will have no problems with the installation and the activation of the Bitdefender program on the same device.

Regards.