Mathcad Prime 9.0 wont start after a crash

[Serge.y.Fortin]

I am using Mathcad Prime Release 9.0 and Datecode9.0.0.0

I have been using Prime 9 for several months. Yesterday, when starting, Mathcad crashed the whole computer. After reboot, when starting mathcad, I see the small message saying mathcad is starting. Then nothing. Mathcad stops and no mathcad is seen on program manager (windows 10). I uninstalled Mathcad, then reinstalled but I still have the same issue.

Here are the errors that I faced
No message

[LucMeekes]

Try removing the file:

"C:\ProgramData\PTC\Mathcad Prime\MathcadPrime.exe.V7.Config"

as it may be corrupt.

No worries, this file is created by Prime when it doesn't exist. You can also rename it.

Success!
Luc

[Serge.y.Fortin]

Thanks for your quick replie.

It did not worked.

Y did the same with the worksheet... file and rebooted. No success.

Any other suggestions

Thanks

Serge Fortin