This question lacks a definite response.
However, running the Windows operating system and applying the most recent Fallout 3 patch are some suggestions that may be helpful.
Getting started can be aided by using a GameFAQs guide.
FAQ :
What does Fallout 3 is not optimized for Windows 7 and later mean?
Because Fallout 3 was created on older platforms, it is not optimized for Windows 7 and later.
How do I get Fallout 3 to run?
There are several methods for making Fallout 3 work. Installing the Fallout 3 modloader is one option. Using the Fallout 3 launcher is a another method.
Can Fallout 3 run on my computer?
Yes, you can play Fallout 3 on a PC. For the best performance, some optimization may be required.
How much RAM does Fallout 3 require?
There is no set amount of RAM needed for Fallout 3. To run the game smoothly, you should have at least 2GB of RAM, though.
What is Fallout 4?
Action role-playing game Fallout 4 was created by Bethesda Softworks and released by Bethesda Game Studios. At E3 2019, at the company’s press conference, Bethesda Softworks president Pete Hines revealed the game. On October 14, 2019, Fallout 4 was made available for the PlayStation 4 and Xbox One. On November 3, 2019, it was made available for the PC.
Just Cause 3’s PC has how much GB?
Data equal to or greater than 8GB is required for Just Cause 3 PC.