This is a, "I told us so moment". Backing up your Raspberry Pi or any other OS image is a good practice to get into. Adding functionality to your OS can be a dangerous task, can you guarantee that all software packages have been tested together.
This video shows how to generate a restore image of your SD card. Simple if you know how, but a pain if you haven't done it before.
Useful Links
More Instructions.
https://simplified-iot.com/f/installi...
Win32 Disk Imager
https://win32-disk-imager.en.uptodown...
SD Card Formatter (Scroll to bottom and click accept)
https://www.sdcard.org/downloads/form...
Video Content
0:00 Intro
1:00 Raspberry PI Imager
1:45 Win32 Disk Imager
2:09 Creating an Image for SD Card
3:35 Fished Missing Extension
4:00 Loading Image from PC to SD Card
4:19 Introduction to SD Card Formatter