Sometimes, TalkType will not work as some pathways are blocked. To fix this, you would need to get your IT team to allow access to the directory locations. Here are all of the Windows directory locations that you will need:
C:\Users\<username>\AppData\Local\Programs\TalkType
C:\Users\<username>\AppData\Local\TalkType
C:\Users\<username>\AppData\Local\Microsoft\WindowsApps
C:\Users\<username>\AppData\Roaming\Microsoft\Windows\Start Menu\Programs
C:\Users\<username>\Desktop
C:\Users\<username>\ProgramData\Microsoft\Windows\Start Menu\Programs
C:\Users\<username>\AppData\Roaming\TalkType