[CmdletBinding()]
Param(
[Parameter(Mandatory=$True,Position=0)]
    [String]$GUID
)

function Resolve-KnownFolderGuid {
Param(
[Parameter(Mandatory=$True,Position=0)]
    [String]$GUID
)
    Begin {
        $guidPattern = New-Object System.Text.RegularExpressions.Regex "([A-Fa-f0-9]{8}(?:-[A-Fa-f0-9]{4}){3}-[A-Fa-f0-9]{12})"
        $GUIDKnownFolderHT = @{
            "DE61D971-5EBC-4F02-A3A9-6C82895E5C04" = "AddNewPrograms"
            "724EF170-A42D-4FEF-9F26-B60E846FBA4F" = "AdminTools"
            "A520A1A4-1780-4FF6-BD18-167343C5AF16" = "AppDataLow"
            "A305CE99-F527-492B-8B1A-7E76FA98D6E4" = "AppUpdates"
            "9E52AB10-F80D-49DF-ACB8-4330F5687855" = "CDBurning"
            "DF7266AC-9274-4867-8D55-3BD661DE872D" = "ChangeRemovePrograms"
            "D0384E7D-BAC3-4797-8F14-CBA229B392B5" = "CommonAdminTools"
            "C1BAE2D0-10DF-4334-BEDD-7AA20B227A9D" = "CommonOEMLinks"
            "0139D44E-6AFE-49F2-8690-3DAFCAE6FFB8" = "CommonPrograms"
            "A4115719-D62E-491D-AA7C-E74B8BE3B067" = "CommonStartMenu"
            "82A5EA35-D9CD-47C5-9629-E15D2F714E6E" = "CommonStartup"
            "B94237E7-57AC-4347-9151-B08C6C32D1F7" = "CommonTemplates"
            "0AC0837C-BBF8-452A-850D-79D08E667CA7" = "Computer"
            "4BFEFB45-347D-4006-A5BE-AC0CB0567192" = "Conflict"
            "6F0CD92B-2E97-45D1-88FF-B0D186B8DEDD" = "Connections"
            "56784854-C6CB-462B-8169-88E350ACB882" = "Contacts"
            "82A74AEB-AEB4-465C-A014-D097EE346D63" = "ControlPanel"
            "2B0F765D-C0E9-4171-908E-08A611B84FF6" = "Cookies"
            "B4BFCC3A-DB2C-424C-B029-7FE99A87C641" = "Desktop"
            "FDD39AD0-238F-46AF-ADB4-6C85480369C7" = "Documents"
            "374DE290-123F-4565-9164-39C4925E467B" = "Downloads"
            "1777F761-68AD-4D8A-87BD-30B759FA33DD" = "Favorites"
            "FD228CB7-AE11-4AE3-864C-16F3910AB8FE" = "Fonts"
            "CAC52C1A-B53D-4EDC-92D7-6B2E8AC19434" = "Games"
            "054FAE61-4DD8-4787-80B6-090220C4B700" = "GameTasks"
            "D9DC8A3B-B784-432E-A781-5A1130A75963" = "History"
            "4D9F7874-4E0C-4904-967B-40B0D20C3E4B" = "Internet"
            "352481E8-33BE-4251-BA85-6007CAEDCF9D" = "InternetCache"
            "BFB9D5E0-C6A9-404C-B2B2-AE6DB6AF4968" = "Links"
            "F1B32785-6FBA-4FCF-9D55-7B8E7F157091" = "LocalAppData"
            "2A00375E-224C-49DE-B8D1-440DF7EF3DDC" = "LocalizedResourcesDir"
            "4BD8D571-6D19-48D3-BE97-422220080E43" = "Music"
            "C5ABBF53-E17F-4121-8900-86626FC2C973" = "NetHood"
            "D20BEEC4-5CA8-4905-AE3B-BF251EA09B53" = "Network"
            "2C36C0AA-5812-4B87-BFD0-4CD0DFB19B39" = "OriginalImages"
            "69D2CF90-FC33-4FB7-9A0C-EBB0F0FCB43C" = "PhotoAlbums"
            "33E28130-4E1E-4676-835A-98395C3BC3BB" = "Pictures"
            "DE92C1C7-837F-4F69-A3BB-86E631204A23" = "Playlists"
            "76FC4E2D-D6AD-4519-A663-37BD56068185" = "Printers"
            "9274BD8D-CFD1-41C3-B35E-B13F55A758F4" = "PrintHood"
            "5E6C858F-0E22-4760-9AFE-EA3317B67173" = "Profile"
            "62AB5D82-FDC1-4DC3-A9DD-070D1D495D97" = "ProgramData"
            "905E63B6-C1BF-494E-B29C-65B732D3D21A" = "ProgramFiles"
            "F7F1ED05-9F6D-47A2-AAAE-29D317C6F066" = "ProgramFilesCommon"
            "6365D5A7-0F0D-45E5-87F6-0DA56B6A4F7D" = "ProgramFilesCommonX64"
            "DE974D24-D9C6-4D3E-BF91-F4455120B917" = "ProgramFilesCommonX86"
            "6D809377-6AF0-444B-8957-A3773F02200E" = "ProgramFilesX64"
            "7C5A40EF-A0FB-4BFC-874A-C0F2E0B9FA8E" = "ProgramFilesX86"
            "A77F5D77-2E2B-44C3-A6A2-ABA601054A51" = "Programs"
            "DFDF76A2-C82A-4D63-906A-5644AC457385" = "Public"
            "C4AA340D-F20F-4863-AFEF-F87EF2E6BA25" = "PublicDesktop"
            "ED4824AF-DCE4-45A8-81E2-FC7965083634" = "PublicDocuments"
            "3D644C9B-1FB8-4F30-9B45-F670235F79C0" = "PublicDownloads"
            "DEBF2536-E1A8-4C59-B6A2-414586476AEA" = "PublicGameTasks"
            "3214FAB5-9757-4298-BB61-92A9DEAA44FF" = "PublicMusic"
            "B6EBFB86-6907-413C-9AF7-4FC2ABF07CC5" = "PublicPictures"
            "2400183A-6185-49FB-A2D8-4A392A602BA3" = "PublicVideos"
            "52A4F021-7B75-48A9-9F6B-4B87A210BC8F" = "QuickLaunch"
            "AE50C081-EBD2-438A-8655-8A092E34987A" = "Recent"
            "BD85E001-112E-431E-983B-7B15AC09FFF1" = "RecordedTV"
            "B7534046-3ECB-4C18-BE4E-64CD4CB7D6AC" = "RecycleBin"
            "8AD10C31-2ADB-4296-A8F7-E4701232C972" = "ResourceDir"
            "3EB685DB-65F9-4CF6-A03A-E3EF65729F3D" = "RoamingAppData"
            "B250C668-F57D-4EE1-A63C-290EE7D1AA1F" = "SampleMusic"
            "C4900540-2379-4C75-844B-64E6FAF8716B" = "SamplePictures"
            "15CA69B3-30EE-49C1-ACE1-6B5EC372AFB5" = "SamplePlaylists"
            "859EAD94-2E85-48AD-A71A-0969CB56A6CD" = "SampleVideos"
            "4C5C32FF-BB9D-43B0-B5B4-2D72E54EAAA4" = "SavedGames"
            "7D1D3A04-DEBB-4115-95CF-2F29DA2920DA" = "SavedSearches"
            "EE32E446-31CA-4ABA-814F-A5EBD2FD6D5E" = "SEARCH_CSC"
            "98EC0E18-2098-4D44-8644-66979315A281" = "SEARCH_MAPI"
            "190337D1-B8CA-4121-A639-6D472D16972A" = "SearchHome"
            "8983036C-27C0-404B-8F08-102D10DCFD74" = "SendTo"
            "7B396E54-9EC5-4300-BE0A-2482EBAE1A26" = "SidebarDefaultParts"
            "A75D362E-50FC-4FB7-AC2C-A8BEAA314493" = "SidebarParts"
            "625B53C3-AB48-4EC1-BA1F-A1EF4146FC19" = "StartMenu"
            "B97D20BB-F46A-4C97-BA10-5E3608430854" = "Startup"
            "43668BF8-C14E-49B2-97C9-747784D784B7" = "SyncManager"
            "289A9A43-BE44-4057-A41B-587A76D7E7F9" = "SyncResults"
            "0F214138-B1D3-4A90-BBA9-27CBC0C5389A" = "SyncSetup"
            "1AC14E77-02E7-4E5D-B744-2EB1AE5198B7" = "System"
            "D65231B0-B2F1-4857-A4CE-A8E7C6EA7D27" = "SystemX86"
            "A63293E8-664E-48DB-A079-DF759E0509F7" = "Templates"
            "5B3749AD-B49F-49C1-83EB-15370FBD4882" = "TreeProperties"
            "0762D272-C50A-4BB0-A382-697DCD729B80" = "UserProfiles"
            "F3CE0F7C-4901-4ACC-8648-D5D44B04EF8F" = "UsersFiles"
            "18989B1D-99B5-455B-841C-AB7C74E4DDFC" = "Videos"
            "F38BF404-1D43-42F2-9305-67DE0B28FC23" = "Windows"
        }
    }
    Process {
        $guid = $guidPattern.Match($GUID).value
        if ($knownFolder = $GUIDKnownFolderHT[$guid]) {
            $knownFolder
        } else {
            "Not found."
        }
    }
    End {}
}

Resolve-KnownFolderGuid -GUID $GUID