Win10 Ver 1511 - Unable to upgrade using ISO method

Guys I'm stuck with build 10240! I need 1511 so it can support my new GPU (GTX 1080) and even when I try to use the ISO, it will not let me keep my current settings, apps & files. It says I'm trying to install a different edition than I'm currently using. I've been on hold with M$ support for over FOUR hours! I cannot find any solution. The windows update says I'm up to date which is of course incorrect. Install date was 8/8/15. My laptop is on 1511 but my desktop won't update. Please tell me how to fix this! I'm not trying to use any language packs or anything. Using Win10 Pro and I downloaded the "Win10" ISO from the media creation tool. Every version I've tried doesn't work. My only option at this point is a clean install which is unacceptable! Please HELP!

Please run winver and post the results here.

Also open a command prompt (admin) and run:
Slmgr /dlv

Post that result window here. Then we can probably tell you what is wrong.

Code:

I'm on 10240 build    <DiagReport>  <LicensingData>    <ToolVersion>10.0.10240.16384</ToolVersion>    <LicensingStatus>SL_LICENSING_STATUS_LICENSED</LicensingStatus>    <LicensingStatusReason>0x4004F401</LicensingStatusReason>    <LocalGenuineState>SL_GEN_STATE_IS_GENUINE</LocalGenuineState>    <LocalGenuineResultP>1</LocalGenuineResultP>    <LastOnlineGenuineResult></LastOnlineGenuineResult>    <GraceTimeMinutes>0</GraceTimeMinutes>    <TotalGraceDays>0</TotalGraceDays>    <ValidityExpiration></ValidityExpiration>    <ActivePartialProductKey>3V66T</ActivePartialProductKey>    <ActiveProductKeyPid2>00330-80000-00000-AA605</ActiveProductKeyPid2>    <OSVersion>10.0.10240.2.00010100.0.0.048</OSVersion>    <ProductName>Windows 10 Enterprise</ProductName>    <ProcessorArchitecture>x64</ProcessorArchitecture>    <EditionId>Professional</EditionId>    <BuildLab>10240.th1_st1.160623-1726</BuildLab>    <TimeZone>Eastern Standard Time(GMT-04:00)</TimeZone>    <ActiveSkuId>4de7cb65-cdf1-4de9-8ae8-e3cce27b9f2c</ActiveSkuId>    <ActiveSkuDescription>Windows(R) Operating System, RETAIL channel</ActiveSkuDescription>    <ProductUniquenessGroups>55c92734-d682-4d71-983e-d6ec3f16059f</ProductUniquenessGroups>    <ActiveProductKeyPKeyId>3c40a285-2469-ae8d-e740-6be881cd3eb6</ActiveProductKeyPKeyId>    <ActiveProductKeyPidEx>03612-03308-000-000000-00-1033-10240.0000-2202015</ActiveProductKeyPidEx>    <ActiveProductKeyChannel>Retail</ActiveProductKeyChannel>    <ActiveVolumeCustomerPid></ActiveVolumeCustomerPid>    <OfflineInstallationId>454552250362303232931568645295340263345815054479517516531703361</OfflineInstallationId>    <DomainJoined>false</DomainJoined>    <ComputerSid>S-1-5-21-272102985-953748518-3613728174</ComputerSid>    <ProductLCID>1033</ProductLCID>    <UserLCID>1033</UserLCID>    <SystemLCID>1033</SystemLCID>    <CodeSigning>SIGNED_INFO_PRS_SIGNED</CodeSigning>    <ServiceAvailable>true</ServiceAvailable>    <OemMarkerVersion></OemMarkerVersion>    <OemId></OemId>    <OemTableId></OemTableId>    <Manufacturer>EVGA INTERNATIONAL CO.,LTD</Manufacturer>    <Model>Default string</Model>    <InstallDate>20150808172625.000000-240</InstallDate>  </LicensingData>  <HealthCheck>    <Result>PASS</Result>    <TamperedItems></TamperedItems>  </HealthCheck>  <GenuineAuthz>    <ServerProps>&lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;&lt;genuineAuthorization xmlns=&quot; origin=&quot;sppclient&quot;&gt;&lt;properties&gt;OA3xOriginalProductId=;OA3xOriginalProductKey=;SessionId=LicensingDiag;TimeStampClient=2016-07-22T17:34:36Z&lt;/properties&gt;&lt;signatures&gt;&lt;signature name=&quot;clientLockboxKey&quot; method=&quot;rsa-sha256&quot;&gt;Sp3TY7vmIVYsFQsYVUrh0jZy7dGgTlblCzh0mvU/NnuxMKNGUQjD/ff12YUnOPwXtt8K+mproec3bGETsKyQfEfIwYExeTVOZm1M0n8syvyHFKi4MrhxkJm79GSptBjODiSoLt7aaNwbAxLE7LX/zPfnpAC2jzty+RpYuZABJIE=&lt;/signature&gt;&lt;/signatures&gt;&lt;/genuineProperties&gt;&lt;/genuineAuthorization&gt;</ServerProps>  </GenuineAuthz>  </DiagReport>

Why does your Product Name say Windows 10 Enterprise?

I have no idea... If i click properties on "this pc" it says win10 pro......

Why does your Product Name say Windows 10 Enterprise?

That is strange, hey? Everything else points to a Pro digital licence.

Suggest check the registry keys under HKEY_LOCAL_MACHINESoftwareMicrosoftWindows NTCurrentVersion
EditionID and ProductName - that is what upgrade uses to check validity.