Data Loss

data loss is when your documents or saved file disappear, when your PC.. restarts or is shut down improperly.

metherds to protect this use a memory stick or hard drive to save and back up your files.

Personal files such as pictures, music, and documents

Back Up Files wizard

You should regularly back up the files you create and modify. It's also a good idea to back up your files before making any system changes, such as adding new hardware, updating drivers, editing the registry, or making large changes to Windows, such as installing a service pack.