Gta San Andreas Failed To Open Log File

Do not jump straight into registry edits. Start with these quick checks:

If the game is in C:\Program Files (x86)\ , Windows restricts writing. Move the game to somewhere like C:\Games\GTA San Andreas or change permissions: gta san andreas failed to open log file

For the average user, will solve the issue in under 90 seconds. Do not jump straight into registry edits