> Last time I used it was last night at home on my Windows 7 desktop, hit the check mark to stop editing my last entry, it then saves via TiddlyFox and I eject my USB drive. I came to work this morning, plugged in my USB, enter my TW5 password and it doesn't want to open after several attempts. I browse to my TW5 html file and notice that my file size is no longer 3MB.. instead it is 80KB. This leads me to believe I lost everything.
TiddlyWiki is a very flexible, customisable system that puts you firmly in charge of your own data. Every care is taken in TiddlyWiki's development to ensure that it is a safe place to preserve your most valuable data but the ultimate responsibility to reduce the risk of data loss falls to users.
* Consider using services like Dropbox to continuously back up your personal data to the cloud. (Dropbox [[has a neat feature|https://www.dropbox.com/help/11]] whereby they keep track of previous versions of files)
* Figure out and protect yourself from the worst case scenarios: what if your USB stick or hard drive fails? What if your computer is hit by a ransomeware virus?
* Be defensive and redundant: for example, take multiple backups and keep them in separate physical locations