Win10 installation from the cloud: Microsoft engineers from Redmond, on August 29, 2019 in version 18970 launched as a test function available only to insiders (participants in the Windows Insider program) that allows to reset the Windows system if an error occurred due to a system failure, or you simply decide to reinstall your computer.
The new cloud download option feature allows to reinstall or upgrade PC for users with Internet connection, saving more than 4 GB of free hard disk or SSD space. After the trial version, as a cumulative update, the build 18970.1005 (KB4518974) with code name (20H1) officially appeared and is now available to anyone. Previously, it was only possible to restore the computer only using media, like a CD/DVD or from a USB device (pendrive or flash drive).
Quick tip: The recovery operation removes installed applications. The "Remove everything" option also deletes user data.
If you had to reinstall due to a system error or if your computer became slow, or was installed a long time ago (years ago) now you can upgrade your system.
Do the following: Click the Start Menu (Windows -Logo button in the left corner of the taskbar), then click the Settings link (small gear icon).
In the Settings window that appears, click the Update & Security link.
In another window, in the menu bar on the left, click the Recovery link. The recovery window appears, where you can reset your computer.
Click the Get started button.
If you do not have or do not want to keep preinstalled (already old) programs, select the Remove everything option. Patience. The new window appears.
Quick tip: The cloud download service stops with an error message if special services are installed. Uninstall the Print Management Console, Windows Fax, Windows Storage Management, wireless display features, and more if you have installed.
In the new window, click the Cloud download link
In the next window you will find a list of selected settings that you can change if necessary. If all the settings are correct, click Reset to begin preparation, then restart the computer automatically.
After the reboot, the Windows system reinstallation begins, which is the same as installing from a USB device (pendrive or flash drive). You can read more about the settings that can be selected during installation here: Windows clean install