When you're trying to install Creately Desktop on your Windows machine, you might receive an error message similar to the image shown below,
Note, the error code: Error 5100 along with the error message.
If you have Bitdefender antivirus installed on your machine and due to certain firewall rules in it, they restrict installing Adobe AIR.
You can resolve this issue by disabling all modules in Bitdefender and installing the Desktop app. Here's how to disable all modules - https://www.bitdefender.com/consumer/support/answer/3347/ in Bitdefender.
Alternatively, you can disable the Bitdefender antivirus to download/install the Desktop AIR.