Hello,
Yesterday I used defender remover as I have noticed that windows installed it back on my pc, everything worked fine afterwards. Today I decided to update my windows and after updating, it broke. My system apps keep showing a "Install failed. Please contact your software vendor." prompt when i try to access them, my start menu along with the search function wont work at all and the right corner where it shows internet connection sound and battery wont display my brightness and sound sliders along with the bluetooth and the other buttons like it used to before updating. I tried everything I found online but nothing worked. I tried uninstalling the updates but it did not help. There are probably several other things that are broken but I could not find them. These are the only ones I was able to find at the moment.