Accommodating legacy applications in Windows 10

Some legacy applications are broken when run on Windows 10.  Here are some common problems and their solutions:

Cannot see mapped drives within applications:
Add this registry key:
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System
“EnableLinkedConnections”=dword:00000001

Cannot write to root of C drive:
Change this registry key:
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System
“EnableLUA”=dword:00000000