[Q] Factory wipe a rooted tablet without touchscreen topic

I have a rooted Asus Transformer TF300T with TWRP. The screen is busted so I can't factory reset within Android. If I go into the bootloader and select Wipe Data, it just takes me to the TWRP screen, which I can't use because of the whole screen issue. I have fastboot installed, but when I enter the bootloader, it does not give me the USB option, just the normal RCK/Android/Wipe Data. I have the Android SDK installed, as well as Platform Tools and the USB driver. When I do either "adb devices" or "fastboot devices" in the command prompt, nothing is detected. How do I proceed? Thanks.

Also, I don't know if this is relevant or not, but in Device Manager, it shows Fastboot as an "other device" with no driver.