Hi, You might be receiving this kind of error message due to a variety of reasons. It can be due to incompatibility. That being said, you may check from the software developer's website if it's compatible with Windows 8.1 since you've mentioned that it's working fine on your Windows 7 PC. If your software is compatible but still doesn't work, you may contact the software developer's support for further assistance. You may share with us here how you will get your issue resolved to help others having the same issue as this. We're just a post away should you have further queries.

Leap Office Version 2. Zte Router Firmware here. 03 Serial Numbers. Convert Leap Office Version 2.03 trail version to full software. Leap office its not working in my laptop windows 8.1 64 bit but it's work only computer windows 7 then how can work to my laptop and it's shows on display ' this app.