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Errors, Security & Troubleshooting

Backblaze Permission Denied When Backing Up

Check filesystem access and operating-system permissions.

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Before you begin

Check whether you are using Backblaze Computer Backup or Backblaze B2 Cloud Storage. The two products have different setup, billing, and recovery procedures. Confirm your operating system, software version, and the exact error before changing settings.

Steps to follow

  1. Identify the affected path and operating system.
  2. Review the backup application's access permissions.
  3. Check file locks and device ownership.
  4. Retest after an authorized permission change.

How to confirm the fix

Repeat the affected task using a safe test. For Computer Backup, check that new files are being backed up and that an appropriate restore point is available. For B2, test a limited upload or download using the intended scoped credentials. A successful status message is not a substitute for a tested restore.

If the issue continues

Record the exact error, time, product, client version, and relevant non-sensitive logs. Consult the official Backblaze Help Center for current instructions. Do not remove the only backup copy, weaken access controls, or disable retention rules just to dismiss a warning.

Security: Never send your account password, two-factor code, private encryption passphrase, B2 application key, or backed-up files through an independent callback form.

Related guides

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