There was a problem installing the application.

[АА_12201117]

There was a problem installing the application. The first time I installed it and worked in it. Then the application disappeared from the computer by itself. When you try to download it back (it shows what has been downloaded), it does not appear on the computer.

[LucMeekes]

You'll have to be a bit more specific.

Was it Mathcad or Prime, and which version?

Which version of Windows?

You say you had it working; was it licensed?

Did you down load the installation directly from PTC?

Success!
Luc

[Catalina]

Hi @АА_12201117,

I wanted to see if you got the help you needed.

If so, please mark the appropriate reply as the Accepted Solution or please feel free to detail in a reply what has helped you and mark it as the Accepted Solution. It will help other members who may have the same question.
Please note that industry experts also review the replies and may eventually accept one of them as solution on your behalf.

Of course, if you have more to share on your issue, please pursue the conversation.

Thanks,

[VladimirN]

What OS and Mathcad version are you using?