The new win10 preview version can already be downloaded and updated for use. I believe that many users have already updated. However, if there are some problems with this system, or if you are not used to it after the update, you can only return to The previous version has been used and can be rolled back directly in the system.
1. First click on the lower left corner to start, then enter the "Settings" interface, and then find "Update and Security".
2. Then in the "Windows Update" tab, click "View update history".
3. Then click "Uninstall Updates".
4. Then update the system with the new version and uninstall it.
5. If it exceeds 10 days and there is no backup of the old system, it may not be possible to roll back.
6. If you cannot roll back, it is recommended to reinstall the old version of the system.
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