Install these: .Net Framework 4.5, Microsoft Visual C++ Redist 2012

https://www.microsoft.com/en-gb/download/details.aspx?id=30679

 

https://www.microsoft.com/en-gb/download/details.aspx?id=30653

Install both if they haven't already been done. If the problems persist I recommend a fresh install through steam. remember to uninstall lcpdfr. I'll be here if you need more guidance 

Do I get all of the files?

yeah you should. Go here, but you will need to downgrade to 1.0.7.0 again. This is the last resort. Click verify integrity of game files and let it perform the actions. This is a last resort. 

Okay, I didn't need the windows files, and I did the verify integrity. I also re-downgraded back to the old version. But it's doing the exact same thing.

Fresh install of LCPDFR? And if you wouldn't mind attaching your GTA IV directory 

1] GO TO GTA IV MAIN FOLDER
2]CREATE A SHORTCUT OF YOUR LAUNCHGTAIV APPLICATION
3]GO TO PROPERTIES OF THE SHORTCUT
4]THEN GO TO THE SHORTCUT TAB ON THE PROPERTIES
5]IN THE TARGET BOX AFTER THE LAST " PUT A SPACE AND TYPE -AVAILABLEVIDMEM
6]RIGHT CLICK YOUR DESKTOP BACKGROUND AND GO DOWN TO SCREN RESOLUTION AND CLICK IT
7]CLICK THE SMALL BLUE TEXT THAT SAYS 'ADVANCED SETTINGS'
8]NOW JUST CHECK YOUR DEDICATED VIDEO MEMORY

NOW BACK TO THE GTA IV PROPERTIES SHORTCUT PORTION:

9]TYPE IN THE NUMBER OF YOUR DEDICATED MEMORY AFTER
-AVAILABLEVIDMEM
10]NOW CLICK APPLY
11]CLICK OK AND START UP YOUR GAME AS 'RUN AS ADMINISTRATOR'
12]ONCE AT THE MAIN MENU WHERE YOU CHANGE YOUR OPTIONS, GO TO GRAPHICS, AND AT THE BOTTOM YOUR NEW VIDEO MEMORY USAGE SHOULD BE THERE
13]NOW JUST ADJUST YOUR GRAPHICS WITHIN YOUR SELF GIVEN RANGE AND START YOUR GAME, IT SHOULD WORK

Try this as well

I can do that tomorrow. I had company over earlier, so.

Ah okay. Go ahead when you can. i'll be here

Okay, I'll try it in a bit.

Okay, I did all those steps mentioned above, and it came up with a fatal error. If you wanna know what it is, I can include a screenshot next.

Okay, nevermind. I fixed that. But, it still reads 26 MB.

Alright, I got it all fixed up, but now LCPDFR won't activate. It's just the normal game. How do I fix that?

Okay, NOW none of my player models are showing up- The weapons show up and the buildings and everything show up, but no people.

Still going on? and sorry for inactivity currently prepping for exams have not been on this site at all 

 

It's possible that your settings are too high or a couple of files have gone wrong somehow