Hallowindows!!

PASTE THIS CODE ON YOUR SITE
<a href="https://developerslife.tech/en/uploads/2016/10/hallowindows-e.jpg"><img src="https://developerslife.tech/en/uploads/2016/10/hallowindows-e.jpg" alt="" title="" /></a><small>Source: <a href="https://developerslife.tech/en/">The Developer's Life</a></small>

Scared?

Transcription ↓

Hallowindows!
This program has performed an illegal operation and will be shut down.
(Jason's mask, with BSOD)