[trying to redownload paint dot net]

i cant do anything and i tried to do it but i think because i deleted the uninstaller and i deleted the paint dot net files permentaly 

[trying to redownload paint dot net]

ive just downloaded paint dot net but ive accidentally deleted it with some of my other files ( not just the app and the files and everything) now i cant get anything back and i try to redownload it using the installer but it has a error  (Fatal error during installation. 1603)i dont know how to fix it welp!