does a "automatic re-install" keep all my plugins an posts

Hey guys,

a few months back i upgraded my wordpress, an I’ve been running into issues updating plugins, usually i would find a way around it. but recently i havnt been able to update some plugins at all. so i googled it an i called my host, an they noticed that the update had some installation errors.

so my question is will doing a “Re-install Now” keep all my plugins an posts pages etc… an just fix the wordpress files?

i have a lot of content on my WP an dont really have the time to do this manually

Thanks
Jon