What the heck is up with these .dll files missing?

uninstalled some programs on my hard drive, now when I try to launch the engine I keep getting an error about ,dll files missing, tried reinstalling 4 times it just keeps changing which dll file is missing, very frustrating, it’s cost me hours and hour sof time, trying different method to download the dlls it says i need, but it comes with a trial program, that only lets you use it’s fix dll’s, once, before they want money. HELP!!

I did download the Unity engine, then tried to uninstall it with all its files marked the same time and date. and one unreal engine file I thought was a copy, 171 mbs…that’s when all my troubles started. I am now trying to reload Unity to see if IT puts the files back I need, wish me luck.

Do you want to use Unity of Unreal Engine 4? If you re takeing data off to save space then you will need to delete all your unreal data except “C:\Users(Private, I do not want to show you this file.)\Documents\Unreal Projects”(Your location will be different). You will need to reinstall Unreal Engine and report if there are any issues. .dll is a extension used for the operation of the Operating System or a program.

idiot!..l.
when uninstaller says, are you sure you want to remove this file, it may cause one or more of your programs to not work, …LISTEN!

I would suggest reinstalling such as 1999 has stated. This should fix your .dll issues. If it does not, then these .dlls are most likely driver or Windows related.