Backup fails with 0x80070020
The last backup did not complete succesfully
more information details : Error code 0x80070020
How do I succesfullly backup with Windows 7?
Solutions to the Problem Backup fails with 0x80070020
· Do you remember making any recent changes to the computer prior to this issue?
· What is the exact and complete error message?
· What are you trying to backup?
I would suggest you to follow the steps mentioned below:
Temporarily disable antivirus software (and any other security software) and firewall on the computer as a test and check if that fixes the issue follow the link:
If disabling the antivirus software fixes the issue, you may have to configure the settings of the antivirus program accordingly.
Note: Make sure you enable the antivirus software, other security programs, and firewall.
Warning: Antivirus software can help protect your computer against viruses and other security threats.
In most cases, you shouldn't disable your antivirus software.
If you have to temporarily disable it to install other software, you should re-enable
it as soon as you're done.
If you're connected to the Internet or a network while your antivirus software is disabled, your computer is vulnerable to attacks.
If the above step fails restart computer in clean boot and check if issue occurs, follow the steps from the link:
Follow the step 7 from the article to “Reset the computer to start as usual”, after performing the clean boot troubleshooting.
For your reference you may follow the steps in the link:
“Back up your files”
“Backup and restore: frequently asked questions”
Open Action Center by clicking the Start button Picture of the Start button, clicking Control Panel, and then, under System and Security, clicking Review your computer's status.
Update and run your antivirus software. Windows doesn't come with antivirus software, but Action Center can often monitor the antivirus software that you or your computer manufacturer have installed.
Another Safe way to Fix the Problem: Backup fails with 0x80070020:
How to Fix Backup fails with 0x80070020 with SmartPCFixer?
1. Click the button to download SmartPCFixer . Install it on your computer. Open it, and it will perform a scan for your computer. The errors will be shown in the list.
2. After the scan is finished, you can see the errors and problems which need to be repaired.
3. The Fixing part is finished, the speed of your computer will be much higher than before and the errors have been fixed.
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