Wix will not touch AppData Folder During Install - wix

Question

So i've been working on this problem for days. My installer simply will not add anything into, or remove anything from, the roaming AppData folder in windows. I'm new to Wix and this is my first installer. The program is also shipped with a Bootstrapper which installs various prequisitaries and the .NET Framework. The code I have used is below.
<?xml version="1.0" encoding="UTF-8"?>
<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
<Product Id="*" Name="USBackup" Language="1033" Version="!(bind.fileVersion.USBackup.exe)" Manufacturer="Ed Rose" UpgradeCode="795ea019-054a-4f34-8c9a-cb4e607897c0">
<Package Id="*" InstallerVersion="200" Compressed="yes" InstallScope="perMachine" />
<Icon Id="icon.ico" SourceFile="..\USBackup\resources\usb.ico"/>
<Property Id="ARPPRODUCTICON" Value="icon.ico" />
<MajorUpgrade DowngradeErrorMessage="A newer version of [ProductName] is already installed." />
<MediaTemplate EmbedCab="yes"/>
<UIRef Id="WixUI_Minimal" />
<UIRef Id="WixUI_ErrorProgressText" />
<PropertyRef Id="NETFRAMEWORK45"/>
<Condition Message='This setup requires the .NET Framework 4.5 installed.'>
<![CDATA[Installed OR NETFRAMEWORK45]]>
</Condition>
<Feature Id="ProductFeature" Title="Setup" Level="1">
<ComponentGroupRef Id="ProductComponents" />
<ComponentRef Id='ProgramMenuDir' />
<ComponentRef Id='AppDataDir'/>
<ComponentRef Id='DevicesDir'/>
</Feature>
</Product>
<Fragment>
<Directory Id="TARGETDIR" Name="SourceDir">
<Directory Id="ProgramFilesFolder">
<Directory Id="INSTALLFOLDER" Name="USBackup" />
</Directory>
<Directory Id="ProgramMenuFolder" Name="Programs">
<Directory Id="ProgramMenuDir" Name="USBackup">
<Component Id="ProgramMenuDir" Guid="{B01A59A5-ADA0-43FD-B14F-D479CD002E72}">
<RemoveFolder Id='ProgramMenuDir' On='uninstall' />
<RegistryValue Root='HKCU' Key='Software\[Manufacturer]\[ProductName]' Type='string' Value='' KeyPath='yes' />
</Component>
</Directory>
</Directory>
<Directory Id="CommonAppDataFolder" Name="CommonAppData">
<Directory Id="AppDataDir" Name="USBackup">
<Component Id="AppDataDir" Guid="{573BF504-1F52-40FE-A78A-96F43924379E}">
<RemoveFolder Id="AppDataDir" On="uninstall"/>
<RegistryValue Root='HKCU' Key='Software\[Manufacturer]\[ProductName]' Type='string' Value='' KeyPath='yes' />
</Component>
<Directory Id="DevicesDir" Name="Devices">
<Component Id="DevicesDir" Guid="{E145EA47-109F-42E7-ABAB-4E9A87FEC464}">
<RemoveFolder Id="DevicesDir" On="uninstall"/>
<RegistryValue Root='HKCU' Key='Software\[Manufacturer]\[ProductName]' Type='string' Value='' KeyPath='yes' />
</Component>
</Directory>
</Directory>
</Directory>
</Directory>
</Fragment>
<Fragment>
<ComponentGroup Id="ProductComponents" Directory="INSTALLFOLDER">
<Component Guid="{9D9BA12C-0859-46F0-B5E1-2A59BE96F83D}">
<File Source="$(var.USBackup.TargetPath)" KeyPath="yes">
<Shortcut Id="start" Directory="ProgramMenuDir" Name="USBackup" WorkingDirectory='INSTALLDIR' Icon="icon.ico" IconIndex="0" Advertise="yes" />
</File>
</Component>
<Component Guid="{6B473C52-6901-4FAC-A48B-20FC13A49C21}">
<File Source="..\USBackup\bin\Release\AutoUpdater.NET.dll" KeyPath="yes"/>
</Component>
<Component Guid="{6191F8CC-98A8-4424-A846-44DC1EB2A22C}">
<File Source="..\USBackup\bin\Release\USBackup.exe.config" KeyPath="yes"/>
</Component>
<Component Guid="{4E183A88-69DE-49D1-9142-13A2346443AF}">
<File Source="..\USBackup\bin\Release\USBackup.exe.manifest" KeyPath="yes"/>
</Component>
<!--Set to open on startup-->
<Component Id="RegistryKey" Guid="{8DBAB7DD-D9CD-4EC4-97F9-9A6131B40108}" Shared="yes">
<RegistryKey Root="HKCU" Key="Software\Microsoft\Windows\CurrentVersion\Run">
<RegistryValue Id="startupValue" Action="write" Name="USBackup" Value="[INSTALLFOLDER]USBackup.exe" Type="string"/>
</RegistryKey>
</Component>
</ComponentGroup>
</Fragment>
</Wix>
It builds with no errors or warnings. Why won't it touch the AppData Directory?

Answer 1

You have not given any reason for it to create it.
Include <CreateFolder/>, as such
<Component Id="AppDataDir" Guid="{573BF504-1F52-40FE-A78A-96F43924379E}">
<RegistryValue Root='HKCU' Key='Software\[Manufacturer]\[ProductName]' Type='string' Value='' KeyPath='yes' />
<CreateFolder />
</Component>