How to completely restore Ubuntu?

Question

linux

I have Ubuntu 14.04. But installing everything different, it turned into a garbage dump. I want to completely restore the system to its original state, as it was after installation.
Everything needs to be formatted: documents, programs, music, etc. Downloading and reinstalling is not a hunt. Maybe there is a rollback command of its own?

Answer 1

Reinstallation in any case will take much less time.

Answer 2

No, there is no command. It's easier to reinstall (I practice this almost every month, maybe hands) + still envy liveUSB with a tambourine, because "linux is shit - how to send two bytes"

Answer 3

Reinstall. And next time use a file system with snapshots.

Answer 4

It’s really better to just simply reinstall it, spend less time and effort, there is no rollback command