Upgrade Site SharePoint 2010 to SharePoint 2013

Step :1 Save the below script  UpgradeSite.PS1 and map the .bat file and execute run with admin
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if ((Get-PSSnapin "Microsoft.SharePoint.PowerShell" -ErrorAction SilentlyContinue) -eq $null)

{

    Add-PSSnapin "Microsoft.SharePoint.PowerShell"

}

$webApps = Get-SPWebApplication

foreach($webApp in $webApps)

{

$sites = $webApp.Sites

foreach($site in $sites)

{

Upgrade-SPSite $site.RootWeb.Url -VersionUpgrade -Unthrottled

$site.Dispose()

}

}

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Step bat file : Open notepad and Save UpgradeSite.bat below line

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cd /d %~dp0

powershell -noexit -file "UpgradeSite.PS1" "%CD%"

pause