diff --git a/lectures/lecture1/notes/slides/1_introduksjon.pptx b/lectures/lecture1/notes/slides/1_introduksjon.pptx
deleted file mode 100644
index 89636ad7dabba9c3683bab86219f71b66a18f877..0000000000000000000000000000000000000000
Binary files a/lectures/lecture1/notes/slides/1_introduksjon.pptx and /dev/null differ