You can't, meaning, you're screwed
it depends, if you decrease graphics it runs smoother, and increased graphics make it lag. you could buy more RAM, which will help against lag. or you could buy the latest drivers or updates. overclocking the graphics card could be an option, but its not reccomended there might be other ways
get a new graphics card
No one repairs graphics cards anymore. The only way to fix a computer is to replace their components. The cost to actually "fix" a graphics card after it has been made would greatly exceed the cost of its original production.
You should have some kind of "control panel" for your card look around in there. -- Actually, a really nice control panel for those sorts of things is "ntune". http://www.nvidia.com/object/ntune_5.05.54.00.html It's a control panel for pretty much anything with graphics... not just overclocking.
You cannot fix a physically broken screen via the graphics card. Take the computer to a repair shop and pay for a new screen to be installed.
You can't "update" it, but you can overclock it. Overclocking is just running a component harder than it was made to. You might need to upgrade your power supply or fan depending on how much you overclock the card. http://www.tomshardware.com/reviews/overclock-graphics-card,1916.html
No, you typically do not need to uninstall ATI drivers before overclocking your graphics card. Overclocking can be done using software tools that work alongside the existing drivers. However, it's a good practice to ensure that your drivers are up to date to avoid compatibility issues and to maximize stability during the overclocking process. Always monitor temperatures and system stability when making adjustments.
That depends on what happened to it, what kind is it, etc... refer to your graphics card manual for help on troubleshooting.
An update for a program to fix issues with NVIDIA cards will not have any effect with Intel graphics. You cannot use NVIDIA-specific programs on your Intel card.
Replace the graphics card, or get an external graphics card.
This problem happens to many people. You must buy a new graphics card. Depending on your computer, the card can cost from $17-150.You also can go to ROBLOX Studio and click Tools>Settings.
I had the same problem cause I didn't have a Graphics card but you can still fix it without a Graphics card by using a software called 3danalyzer its free search for it and under it select "Emulate HWL caps" that's all..