Solved Downgrade to windows 7 from windows 10 now "Windows is not genuine"

[Electronx]

Downgrade to windows 7 from windows 10 now "Windows is not genuine"

I have downgraded back to windows 7 from windows 10 but the original product key is now invalid and now it tells me that my Windows is not genuine.
I get this error when I try to activate it : 0xC004E003

Diagnostic Report (1.9.0027.0):
-----------------------------------------
Windows Validation Data-->

Validation Code: 0
Cached Online Validation Code: N/A, hr = 0xc004f012
Windows Product Key: *****-*****-GK4PY-FDWYH-7TP9F
Windows Product Key Hash: u3xU6PnmumgYLgUpnmbqEw9Q2OA=
Windows Product ID: 00371-OEM-8992671-00004
Windows Product ID Type: 2
Windows License Type: OEM SLP
Windows OS version: 6.1.7601.2.00010100.1.0.048
ID: {F0411B0D-24EB-419F-B70C-04C0A083E34E}(1)
Is Admin: Yes
TestCab: 0x0
LegitcheckControl ActiveX: N/A, hr = 0x80070002
Signed By: N/A, hr = 0x80070002
Product Name: Windows 7 Professional
Architecture: 0x00000000
Build lab: 7601.win7sp1_gdr.150525-0603
TTS Error: 
Validation Diagnostic: 
Resolution Status: N/A

Vista WgaER Data-->
ThreatID(s): N/A, hr = 0x80070002
Version: N/A, hr = 0x80070002

Windows XP Notifications Data-->
Cached Result: N/A, hr = 0x80070002
File Exists: No
Version: N/A, hr = 0x80070002
WgaTray.exe Signed By: N/A, hr = 0x80070002
WgaLogon.dll Signed By: N/A, hr = 0x80070002

OGA Notifications Data-->
Cached Result: N/A, hr = 0x80070002
Version: N/A, hr = 0x80070002
OGAExec.exe Signed By: N/A, hr = 0x80070002
OGAAddin.dll Signed By: N/A, hr = 0x80070002

OGA Data-->
Office Status: 109 N/A
OGA Version: N/A, 0x80070002
Signed By: N/A, hr = 0x80070002
Office Diagnostics: 025D1FF3-364-80041010_025D1FF3-229-80041010_025D1FF3-230-1_025D1FF3-517-80040154_025D1FF3-237-80040154_025D1FF3-238-2_025D1FF3-244-80070002_025D1FF3-258-3

Browser Data-->
Proxy settings: N/A
User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Win32)
Default Browser: C:\Program Files\Google\Chrome\Application\chrome.exe
Download signed ActiveX controls: Prompt
Download unsigned ActiveX controls: Disabled
Run ActiveX controls and plug-ins: Allowed
Initialize and script ActiveX controls not marked as safe: Disabled
Allow scripting of Internet Explorer Webbrowser control: Disabled
Active scripting: Allowed
Script ActiveX controls marked as safe for scripting: Allowed

File Scan Data-->

Other data-->
Office Details: <GenuineResults><MachineData><UGUID>{F0411B0D-24EB-419F-B70C-04C0A083E34E}</UGUID><Version>1.9.0027.0</Version><OS>6.1.7601.2.00010100.1.0.048</OS><Architecture>x32</Architecture><PKey>*****-*****-*****-*****-7TP9F</PKey><PID>00371-OEM-8992671-00004</PID><PIDType>2</PIDType><SID>S-1-5-21-3045896600-2295137608-361030252</SID><SYSTEM><Manufacturer>System manufacturer</Manufacturer><Model>System Product Name</Model></SYSTEM><BIOS><Manufacturer>American Megatrends Inc.</Manufacturer><Version>0607</Version><SMBIOSVersion major="2" minor="7"/><Date>20131129000000.000000+000</Date></BIOS><HWID>2AED3B07018400FE</HWID><UserLCID>040C</UserLCID><SystemLCID>040C</SystemLCID><TimeZone>Paris, Madrid(GMT+01:00)</TimeZone><iJoin>0</iJoin><SBID><stat>3</stat><msppid></msppid><name></name><model></model></SBID><OEM/><GANotification/></MachineData><Software><Office><Result>109</Result><Products/><Applications/></Office></Software></GenuineResults>  

Spsys.log Content: 0x80070002

Licensing Data-->
Version du service de licences logicielles*: 6.1.7601.17514

Nom*: Windows(R) 7, Professional edition
Description : Windows Operating System - Windows(R) 7, OEM_SLP channel
ID d’activation*: 50e329f7-a5fa-46b2-85fd-f224e5da7764
ID d’application*: 55c92734-d682-4d71-983e-d6ec3f16059f
PID étendu*: 00371-00178-926-700004-02-1036-7601.0000-2172015
Identificateur d’installation*: 001814730856334903841671858593341181203294443012370430
URL du certificat du processeur : http://go.microsoft.com/fwlink/?LinkID=88338
URL du certificat de l’ordinateur : http://go.microsoft.com/fwlink/?LinkID=88339
URL de licence d’utilisation : http://go.microsoft.com/fwlink/?LinkID=88341
URL du certificat de clé de produit*: http://go.microsoft.com/fwlink/?LinkID=88340
Clé de produit partielle*: 7TP9F
État de la licence*: période de grâce initiale
Temps restant*: 42420 minute(s) (29 jour(s))
Nombre de réinitialisations de Windows restant*: 2
Heure approuvée*: 05/08/2015 14:17:11

Windows Activation Technologies-->
HrOffline: 0x00000000
HrOnline: N/A
HealthStatus: 0x0000000000000000
Event Time Stamp: N/A
ActiveX: Registered, Version: 7.1.7600.16395
Admin Service: Registered, Version: 7.1.7600.16395
HealthStatus Bitmask Output:


HWID Data-->
HWID Hash Current: MAAAAAIAAgABAAEAAQABAAAAAQABAAEAJJSaNvyMTjQaXXzpIgVmht6IsoJMBJZj

OEM Activation 1.0 Data-->
N/A

OEM Activation 2.0 Data-->
BIOS valid for OA 2.0: yes, but no SLIC table
Windows marker version: N/A
OEMID and OEMTableID Consistent: N/A
BIOS Information: 
  ACPI Table Name	OEMID Value	OEMTableID Value
  APIC			ALASKA		A M I
  FACP			ALASKA		A M I
  HPET			ALASKA		A M I
  MCFG			ALASKA		A M I
  FPDT			ALASKA		A M I
  SSDT			SataRe		SataTabl
  BGRT			ALASKA		A M I
  SSDT			SataRe		SataTabl
  SSDT			SataRe		SataTabl

 

[ThrashZone]

Hi and welcome to SevenForums,
I would also post your question here
M$ staff might actually see it as well as other people with the same outcome from win-10 system restore
Windows Insider Program - Microsoft Community

 

[NoelDP]

The installation is non-genuine.

The installed Product Key is an OEM_SLP Key from an ACER machine - but your motherboard is a retail one.
OEM_SLP Keys are ONLY valid when used in conjunction with the manufacturer's Recovery media. Retail bords don't have recovery media.

 

[ThrashZone]

Very educational Noel

You might state where you bought this copy of windows 7