Found a fix for this god-awful problem. Here's how I did it for anyone else who unfortunately met the same errors. In the top attachment, the image shows that you press the windows key and then search up "uninstall." Go to the control panel (which should be automatically selected) and press "Uninstall a program." In the second attachment, it shows that you need to select Avast from the list (I selected Adobe Creative Cloud as an example due to the fact that I don't have Avast anymore) and then press "Uninstall/Change." You may ask "but isn't this an obvious solution?" It is an obvious solution but in the original post, the third attachment is what shows up after you press "Uninstall/Change." If this pops up after pressing "Uninstall/Change," wait. Just wait for a couple of minutes. Do something in the background (I watched videos in the meantime) and then try again. Keep trying every couple or so minutes until you get to a screen that you finally want to get to, the screen that has a variety of buttons such as "repair," "uninstall," "update," etc. Although I tried updating and repairing through these buttons and restarting after every time, none of these buttons worked, ultimately leading to me opting for uninstalling Avast altogether. Although I'll probably consider Avast as my main antivirus again, I just hope that this doesn't happen to me and I also hope that this forum post finds anyone well who also gets the help that they need through this post. Thank you.