installerglitch

I deleted OBS from my computer because It was not recording all my video and I was planning to download it again. When I downloaded the installer though, It came up whit this message saying that OBS Studio is open when it is not. Can someone please help me fix this issue.

When it gets the Introduction page on the "Install OBS", when i try to press continue, it wont let me go forward. Ive waited about an hour and tried reinstalling it multiple times but its the same problem. It just continues to load the spinning wheel of death. :(( Is there any way to fix this?