Fix Microsoft Store install button grayed out in Windows 10 [Tutorial]

This tutorial will help you fix grayed out Microsoft Store install button
while trying to install apps in Windows 10. Unable to install apps Microsoft Store install button greyed out.

This tutorial fixes the following issues:

Microsoft Store install button grayed out
Windows Store install button grayed out
Microsoft Store button grayed out in Windows 10
Windows Store button grayed out
Microsoft Store install button grayed out

Copy and paste 1:
Get-AppXPackage -AllUsers -Name Microsoft.WindowsStore Foreach {Add-AppxPackage -DisableDevelopmentMode -Register /"(_.InstallLocation)//AppXManifest.xml/" -Verbose}

Copy and paste 2:

Get-AppXPackage Foreach {Add-AppxPackage -DisableDevelopmentMode -Register /"(_.InstallLocation)//AppXManifest.xml/"}

Copy and paste 3:

PowerShell -ExecutionPolicy Unrestricted -Command /"& {manifest (Get-AppxPackage Microsoft.WindowsStore).InstallLocation '//AppxManifest.xml' ; Add-AppxPackage -DisableDevelopmentMode -Register manifest}/"

Windows 10 download:
https://www.microsoft.com/en-us/software-download/windows10

This troubleshooting guide will work on Windows 10, Windows 7, Windows 8, operating systems and desktops, laptops, tables and computers manufactured by the following brands: HP, Alienware, MSI, Toshiba, Acer , Lenovo, Razer, Huawei, among others.

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