Microsoft has released the latest Windows 10 May 2019 Update (version 1903) via the Windows Update service for users running earlier versions of Windows 10.
If for some reason you want to reinstall Windows 10, or if you can't wait, if you have the latest build of Windows 10, you can download the latest version of Windows 10 from Microsoft.
Users who have upgraded to Windows 10 may want to do a fresh install of Windows 10 from a USB drive. If you are one of those who want to completely reinstall or install Windows 10, I'm glad to know that now you can easily download the Windows 10 ISO from Microsoft for free.
Method 1: Get Windows. 10 ISO download link from Microsoft without entering a product key
Step 1 : Visit this page from Microsoft (https://www.microsoft.com/en-us/software-download/windows10). Way. If you ask for the product key with this tool, you can follow this method if you follow this method.
If you download after you will see one file as shown below.
Step 2 : Open] The MediaCreationTool file takes a while. Wait for more than 5 minutes, but if the window below is not displayed, restart the computer and open it again. Open the file and accept [19459005를선택하십시오]
Step 3 ]: Create installation media for another PC Select Next
] Step 4 : The window below appears. If Use recommended options for this PC is displayed, deselect Frame 1 below and click on Language (Language) if the default is not English ( US) Select English (US) again
Three options in version : Windows 10 Windows 10 Home Single Language and Windows 10 N . When you install using this file, select Windows 10 because it is the version that includes Windows 10 Home and Windows 10 Pro. You can install a Home or Pro version when you install Windows 10.
Under Architecture select the version of the Windows .ISO file you want to download: 32-bit ( x86) or 64-bit (x64) or both (supports both versions installed)
32-bit Or 64-bit neither. Example Choose 32-bit (x86), then then to proceed to the next step.
Step 5 : Select the media to use ISO File ] => Next
Step 6 : Select a location to save the ISO image file, then click the Save button to start downloading the Windows 10 ISO image file. 
Your computer will now begin downloading files from Microsoft to your computer. The download time is 10 to 120 minutes depending on the speed of your internet.
When the download is complete, when the message below appears, select Done to complete ]
To save a file to a selected location (for example, select your desktop screen), a Windows file is displayed (this file is iOS File and it does not need to be unpacked because it has different display icons depending on the computer)