How to install:

Step 1: Download and install Open IV 4.0
Link: https://www.gta5-mods.com/tools/openiv

Step 2: After you install OpenIV click on GTA 5(windows), then click on "tools" then "Asi Manager" and install asi loader and open iv.asi.

Step 3: Extract the file you downloaded.

Step 4: Inside the folder "New Loading Screens" you will find two folders, "scaleform_frontend.rpf" & "scaleform_platform_pc.rpf"

Step 5: Inside open iv, go to this directory "Grand Theft Auto V\update\update.rpf\x64\data\cdimages"

Step 6. Here you will find a file named "scaleform_frontend.rpf", open it and then click on Edit mode from above!

Step 7: Now from the extracted folder open "scaleform_frontend.rpf" and replace "loadingscreen_startup" by dragging it to your OpenIV.

Step 8: Repeat the same process for "scaleform_platform_pc.rpf".

Step 9: Close all archives and run the game.