Although insufficient RAM and hard drive space are the primary factors that bring up the error, it can result from several other issues.
Fix Windows Upgrade error 0x800705AA
If you face this issue when you update or upgrade your Windows 11/10 PC, follow these suggestions. Before you begin, ensure that you meet the following prerequisites before proceeding:
Disconnect all USB drives connected to the computer.Uninstall any SD card present on the system.Make sure that your hard drive has at least 10 to 16 GB of free space.
1] Run Windows Update Troubleshooter
Run Windows Update Troubleshooter and see.
2] Run the operation in Clean Boot State
Restart your PC in Clean Boot State and then run the Upgrade or Update. This will close all your open programs and load only the Microsoft programs and services. If this does not help, then you will have to follow one of these two suggestions.
3] Use the Update Assistant or Media Creation Tool
You can use the Windows Upgrade Assistant or Media Creation Tool to upgrade your Windows.
4] Upgrade Windows 11/10 using ISO
You can upgrade Windows using Windows ISO. You might want to first backup your important data to an external drive before you proceed with the upgrade process. Also, make sure you have a Windows login password ready. And although you won’t need it during the upgrade process, it might be a good idea to find and down your Windows product key somewhere. All the best.
