What is Backblaze Computer Backup?
Computer Backup is software that runs quietly in the background, continuously backing up new and changed files on a Mac or Windows computer. This page explains the core concepts in plain terms.
Continuous Backup
Automatically backs up new and changed files as they're saved, rather than on a fixed manual schedule.
External Drive Support
Backs up attached external drives in addition to the computer's internal storage.
Version History
Keeps earlier versions of changed or deleted files for a period of time, useful for undoing mistakes.
Offsite Storage
Data is stored in the cloud, away from your local network, which helps protect against local disasters.
Recovery Options
Files can typically be restored through a web browser, a mobile app, or by requesting a physical drive.
Ransomware Recovery
Version history can help recover files affected by ransomware, by rolling back to a point before the infection.
Common setup questions
Install the backup client
Download and install the backup application on the computer you want to protect.
Let the initial backup run
The first backup uploads all existing data and can take a while depending on how much data you have and your connection speed.
Confirm ongoing backup
After the initial backup, the client should continue backing up new and changed files automatically.
Know how to restore
Familiarize yourself with the restore options before you actually need them.
Related troubleshooting topics
Computer Backup FAQ
How long does the first backup take?
The initial backup uploads all existing data on the computer and attached drives, so it can take anywhere from hours to days depending on the amount of data and your internet upload speed.
Does Computer Backup include external drives?
Yes, attached external drives are generally included, though network-attached storage (NAS) devices are typically not covered by consumer computer backup products.
How do I restore a single file versus a whole computer?
Most backup tools let you browse and restore individual files through a web interface, while restoring an entire computer often involves downloading a larger archive or requesting a physical drive.
Ready to dig deeper?
Read step-by-step guides related to Computer Backup.