|Scenario Task Description
Your computer [[Destroying temporary files … Your computer [[Destroying temporary files | keeps trace]] of most of your activities. This includes the websites you visit, documents you've worked on, email attachments opened, etc. This information is constantly collected and stored as 'temporary files' on the computer. Since these files document your actions, they could give away a lot of information about you to anyone who might have access to your machine, so it may be prudent to delete such traces.
[https://ssd.eff.org/en/module/how-delete-your-data-securely-windows Bleachbit for Windows] and [https://ssd.eff.org/en/module/how-delete-your-data-securely-linux Linux], as well as [https://securityinabox.org/en/guide/ccleaner/windows Ccleaner] can destroy temporary files.
Using your browser in [https://support.google.com/chrome/answer/95464?hl=en Incognito mode on Chrome] or [https://support.mozilla.org/en-US/kb/private-browsing-use-firefox-without-history Firefox] will prevent the recording of your browsing history and the download of [https://en.wikipedia.org/wiki/Cache_%28computing%29 cache] to the computer. It will also disable [https://en.wikipedia.org/wiki/HTTP_cookie cookie] collection for that session and help [https://myshadow.org/visualisations/animation prevent profiling]. Additional browser settings on [https://myshadow.org/how-to-increase-your-privacy-on-firefox Firefox] and [https://myshadow.org/how-to-increase-your-privacy-on-chrome Chrome] will help you better control your data.
If you want to be fairly sure that anyone getting hold of your machine will not be able to learn about what you've been up to, it is always advisable to [[I want to prevent unauthorised access to my data | encrypt your hard disk]], and you can also consider using [https://tails.boum.org/ Tails], a live operating system that leaves no traces on the computer you are using (unless you ask it to do so).
<br />(unless you ask it to do so).