Yay! I can’t believe it, I actually solved it myself..
I’m gonna explain how I solved it so that this solution stays here for others who experience similar issues:
Right click on the Vegas EXE file (the one that runs the installed program)
Click “Properties”
Nativate to the “Compatibility” tab
In “Compatibility Mode”, Choose “Run this program in compatibility mode for: Windows ___” (In my case, I chose “Windows 7” since on Windows 7 Vegas and all the VSTPlugins ran perfectly).
Hit “Apply” and “OK”
Open Vegas, open “options” -> “Preferences”
Navigate to “VSTPlugins” tab
RECHOOSE the VSTPlugins folder from wherever you have it (mine is in Program Files”
Once chosen, hit the “Refresh” button
It’ll ask you something like “this action will refresh/reload all vstplugins, are you sure you wanna do it?”
Hit “Yes”
It’ll reload all plugins from the folder and… voilla!! They all work again!!!!!
Hope this little guide helps others..
And thanks for anyone who was trying to help me!