AMD Radeon HD 3450

So I recently purchased a refurbished PC, which is: Dell Optiplex 980 x64 based. It has the following basic specs:

CPU: i5 650, 3.20GHz (Dual-Core)

RAM: 8GB

Windows 10 Home Version 10.0.17134 Build 17134

Graphics card: AMD Radeon HD 3450

When I tried to run a few games like osu!, Minecraft, and CS: GO, I received an error message in all of these games. And they all basically mean that my PC doesn't have enough graphics drivers to run these programs. When I checked my device information, I found out that my Graphics card is recognized, but no drivers are installed. The inf file my card uses is "oem4.inf (ati2mtag_Legacy section)."

I tried to install the ATI Catalysts, but that didn't help. It resulted in "OK" messages. I did try literally all versions for my driver. Another fix I tried to do was roll back driver, which apparently worked for a few people, even for people who have the same problem with the same driver. But in my case, the rollback driver option is greyed out (meaning I cannot do that).  Since no PC can run without a graphics driver, my graphics are currently run through Microsoft Basic Display Adapter which is the most basic thing you can expect in a computer.  The status of the driver is "Not Available/No updates required." 

I read a post similar but with an NVidia driver which can be found here. I am not completely sure if this can work. I think downgrading my Windows to Windows 7 might be a solution as the official website only has the catalysts for Windows Vista/7/8.1, but I do not want to do that because Microsoft is soon going to stop support for Windows 7 (and everyone can agree that Windows 8.1 is Windows 10 but worse). So downgrading my OS is not an option yet. 

I am also not sure if my PC has integrated graphics, and if switching to integrated might help or not. I could have tried that right when I got that but the website I bought it through enabled a BIOS password, and Dell PCs do not have easy backdoor passwords. I will be honest here, I am a newbie and lazy so I do not bother to reset my BIOS password. Has anyone had a similar problem, not necessarily with this exact Graphic card or ATI cards at all? If yes did you fix it? Buying a new graphics card is not in my budget at the moment, but apparently, that is the only option I have. Unless there's a solution. In case I didn't provide enough system information please reply here and I will disclose it if it's okay to share that. 

Edit: The Driver version is:  AMD Radeon HD 3450  v21.19.413.0