It is possible that the firewall is not open on Windows 7 for Notezilla program.
- Go to Windows 10 computer, go to a Windows sticky note and choose Send To->Computer and add Windows 7 computer in there. If it is already listed, remove the computer, close the window and go back to Send To->Computer and add Windows 7 computer in that list and close the window
- Now go back to a sticky note on Windows 7 and try sending a note a note to Windows 10 computer. If it doesn't succeed, then please let me know what error you are getting.
Note that if you are going to send notes only between computers on LAN then you don't have to purchase annual subscription (cloud version). You only have to purchase one time license (Non-Cloud version) for every user.
If you are going to send notes to other contacts over Internet or if you are planning to sync notes between computers and phone devices then you will need to purchase annual subscription (Cloud version).
After you purchase annual subscription, your order email will have link to cancel the subscription.
For more details, please visit http://www.conceptworld.com/Notezilla/BuyNow