What you’re seeing
- Active Backup for Business logs a message that previous snapshots of C:\ were not found.
- A backup that normally takes minutes restarts as a full backup and runs for hours.
- The PC or server slows down while the full backup reads the whole drive.
- It happens again after the next reboot or Windows update.
Common causes
Every environment is different, but these are the causes our engineers find most often:
- Windows Volume Shadow Copy deleted the snapshot ABB relies on, often because shadow storage was too small.
- Another backup or restore-point tool is creating and deleting shadow copies on the same volume.
- A major Windows update or disk cleanup removed existing shadow copies.
- The ABB agent's tracking data was lost after an unclean shutdown or agent reinstall.
Why it matters
Every unexpected full backup consumes bandwidth, NAS storage and hours of machine time, and if it happens frequently it can crowd out other devices' backups. Laptops that leave the office before a full backup finishes may end up with no current restore point at all. Over time, storage on the NAS fills faster than expected and retention is cut short.
How AskTechGurus fixes it
Skip the trial and error. A certified engineer works on your actual system, finds the root cause, and fixes it properly.
Tell us what’s happening
Submit a ticket in about two minutes. Paste the error, describe what changed, and pick your tier. No charge to submit.
A certified engineer diagnoses it
A vetted, US-based systems engineer claims your ticket, usually within minutes during business hours, and investigates over a secure remote session you can watch and end at any time.
Fixed and verified with you
The engineer resolves the root cause and confirms with you that it’s working. You don’t just get a workaround, and you get a plain-English summary of what was wrong.
Pay only when it’s resolved
Fixed price from $99, invoiced only after you approve the fix. If it isn’t resolved, you don’t pay.
Frequently asked questions
Are we losing old backups when this happens?
No, existing versions on the NAS remain. The issue is that ABB cannot continue the chain efficiently, so it starts over with a full read.
Can you help remotely?
Yes. A certified US engineer can work through it with you in a remote secure session, starting from $99, and you pay only when it is resolved.