You are sitting at your computer doing what you usually do. After it was 4:00 AM in the morning you couldn't stay up any longer and decided to go to sleep. When you wake up and turn on your computer, you notice the startup screen looks completely different. Then, a picture of a scalemate appears along with some text:

T3R3Z1 PYROP3 OS >:]

You sure as fuck didn't install this OS, and there would be no way for it to install, so how did it happen? Then, as if this OS had some weird ass mind reading powers, a certain tealblood, who you assume is the creator of this OS, appears on screen.

"1 1NST4LL3D TH1S ON YOUR HUSKTOP WH1L3 YOU W3R3 SL33P1NG 4ND 1 4LR34DY D1D TH3 S3TUP FOR YOU"

You can see your handle for about a millisecond before the computer actually starts up. Right away you can see Trollian and a bunch of other weird Alternian versions of different apps, including an antivirus. They are all at the upper left corner of the screen, and the OS itself looks surprisingly neat. The wallpaper is of course Terezi's face, but it's not like she'll let you change it.