I've just moved to Fedora recently. I found that Fedora is a bit hard to work with but everything was quite fine. I tried to install grub customizer through software center didn't work as it told me that something is missing (libssl or something). I downloaded an openssl package, which was .rpm, and installed it via software center. The installation went just fine until it reaches 90%. I opened the Activity launcher (sorry idk how to call it) and all the applications both my dock and the "All" sections disappeared, and it only showed my running applications. Search function didn't work either as it couldn't find anything. I couldn't start anything, even Settings app (through the top right menu, or the power menu). I tried to restart Fedora and voila, GRUB is gone. There's no listed operations, no Fedora, just grub:>_. Luckily I got through GRUB and booted Windows by typing "exit". Tbh I didn't know what I had done wrong. Please help me.