Resolve Windows 10 related issues for your HP computers or printers by HP Windows 10 Support Center
Factory reset results in error message: unable to mount cache. What can resolve this?
@Gjn1 Welcome to HP Community!
I would suggest you to contact our phone support in this regard. They will help you.
Here is how you can get in touch with phone support.
1)Click on this link - www.hp.com/contacthp/
2)Select the product type.
3)Enter the serial number of your device or select let HP detect your product option.
4)Select the country from the drop-down.
5)You should see the HP phone support number or Chat option listed.
Keep us posted,
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