Hi! I understand you want to reinstall MobiOffice PDF Editor after your computer was wiped due to a virus, and you have your invoice number ready. I’m here to guide you through this.

Since your computer was wiped, you’ll need to download and install the software again and then activate it using your invoice info.

Here’s how you can proceed step-by-step:

1. Download MobiOffice PDF Editor:
- Go to the official MobiSystems website or the MobiOffice product page.
- Download the latest version compatible with your Windows 10 system.

2. Install the software:
- Run the installer you downloaded and follow the on-screen instructions to install MobiOffice PDF Editor.

3. Activate using your invoice number:
- When prompted to activate the product, enter your invoice number (43D04B42-0002) or the license key provided in your original invoice email. This will confirm your purchase and unlock the full version.

If you don’t have the license key but only the invoice number, please check your email inbox for any purchase confirmation mails from MobiSystems, as those usually contain license details. Alternatively, you can contact MobiSystems support with your invoice number to retrieve your license key.

If you need help downloading or activation steps, just let me know! Are you ready to start with the download, or do you want me to clarify anything first?