I've been looking everywhere for a solution why TinyUmbrella was unable to start. The application runs through a couple of flash screens including "unable to validate libraries" & "Reticulating splines" and then just closes.
Most common explanations was Java issue - people advised to update or re-install Java, to disable firewall or to download previous version of TinyUmbrella but that's not it.
The problem is that TinyUmbrella saves a path to SHSH files and when the path changes it fails to start.
first install net framework 4.0 or 4.5 verson
Download .NET Framework 4.0 Redistributable: http://adf.ly/1V8ooa
Download .NET Framework 4.5 Redistributable: http://adf.ly/1V8ora
Watch Videos on Youtube: https://youtu.be/Rp0kOtgFBu8
After that Replace the file in: C:/Your username/.shsh/.cache/lib-win.jar by this one:
Link here: http://adf.ly/1V8p4H