Open Settings. Click on System. Click on Storage. Click the Temporary files option for the main drive. Clear the current item selections. Check the Temporary Windows Installation files or Windows Setup temporary files item. Click the Remove files button. After you complete the steps, use the Windows Update settings again to download version 21H1.How do I upgrade to 21h1?
As a result, the update may not be offered to you right away. However if you insist on doing an upgrade to 21HI right now. You can use the Update Assistant to get 21H1 manually. If you choose this method, notice that it will do compatibility check at first, and take around a hour to complete.What to do if Windows 10 May 2021 update fails to install?
If you are using a USB flash drive to install the Windows 10 May 2021 Update and the setup fails, some of the files may be damaged or missing. You can quickly get around this problem by recreating the bootable media with the Media Creation Tool. To create a USB bootable media to install Windows 10, use these steps: Open Windows 10 download page.What are the system requirements for the installation of version 21h1?
The installation of version 21H1 requires at least 20GB of space. If you do not meet this requirement, you will see one of the 0xC1900101 error codes. If this is the case, you can use the Storage and Apps & features settings to free up space.