This error usually indicates that a security program is interfering with Backblaze processes. Please try disabling any network monitoring programs, firewalls and antivirus on your machine, then follow these steps to repair the program:
- Go to http://files.backblaze.com (be sure to install under the same account)
- Download the client.
- Reboot the machine fully
- When the computer is up and running, run the installer and click install now.
- Once you have done so, please try holding the Alt or Option key and click the Restore Options button in the Backblaze Panel to force an immediate rescan on your machine.