windows7 Activation

Sir,
I have been using win7 ultimo since many months which was duly activated before use.To my surprise since today I get the following message on the right side of my task bar.
"Windows 7
Build 7601
This Copy of Windows is not genuine".
I do not know how to again activate this. I do not wish to again reinstal win 7 as I have got lot of data in my "C" drive. I have pasted the Diagnostic Report (1.9.0027.0):
as per your instruction.Please help and guide me how I can again activate win 7 without losing all my data.
thanks

Code:

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

Validation Code: 50
Cached Online Validation Code: 0xc004c4a2
Windows Product Key: *****-*****-V9488-FGM44-2C9T3
Windows Product Key Hash: rmk1OjF0iZq7gQoRmEcpnJHr0oc=
Windows Product ID: 00426-OEM-8992662-00010
Windows Product ID Type: 2
Windows License Type: OEM SLP
Windows OS version: 6.1.7601.2.00010100.1.0.001
ID: {C5635C64-1C89-48EB-80D8-51D7F33A7051}(1)
Is Admin: Yes
TestCab: 0x0
LegitcheckControl ActiveX: N/A, hr = 0x80070002
Signed By: N/A, hr = 0x80070002
Product Name: Windows 7 Ultimate
Architecture: 0x00000000
Build lab: 7601.win7sp1_rtm.101119-1850
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: 100 Genuine
Microsoft Office Enterprise 2007 - 100 Genuine
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_E2AD56EA-765-d003_E2AD56EA-766-0_E2AD56EA-134-80004005

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>{C5635C64-1C89-48EB-80D8-51D7F33A7051}</UGUID><Version>1.9.0027.0</Version><OS>6.1.7601.2.00010100.1.0.001</OS><Architecture>x32</Architecture><PKey>*****-*****-*****-*****-2C9T3</PKey><PID>00426-OEM-8992662-00010</PID><PIDType>2</PIDType><SID>S-1-5-21-614743499-3520290894-226437134</SID><SYSTEM><Manufacturer>INTEL_</Manufacturer><Model>DG41RQ__</Model></SYSTEM><BIOS><Manufacturer>Intel Corp.</Manufacturer><Version>RQG4110H.86A.0013.2009.1223.1136</Version><SMBIOSVersion major="2" minor="4"/><Date>20091223000000.000000+000</Date></BIOS><HWID>EBAE3807018400F8</HWID><UserLCID>0409</UserLCID><SystemLCID>0409</SystemLCID><TimeZone>India Standard Time(GMT+05:30)</TimeZone><iJoin>0</iJoin><SBID><stat>3</stat><msppid></msppid><name></name><model></model></SBID><OEM><OEMID>HPQOEM</OEMID><OEMTableID>SLIC-WKS</OEMTableID></OEM><GANotification/></MachineData><Software><Office><Result>100</Result><Products><Product GUID="{90120000-0030-0000-0000-0000000FF1CE}"><LegitResult>100</LegitResult><Name>Microsoft Office Enterprise 2007</Name><Ver>12</Ver><Val>64BC76978749586</Val><Hash>GW6PzcEVEDTVKeO5Ym5UUm41dBk=</Hash><Pid>89388-707-0441865-65244</Pid><PidType>14</PidType></Product></Products><Applications><App Id="15" Version="12" Result="100"/><App Id="16" Version="12" Result="100"/><App Id="18" Version="12" Result="100"/><App Id="19" Version="12" Result="100"/><App Id="1A" Version="12" Result="100"/><App Id="1B" Version="12" Result="100"/><App Id="44" Version="12" Result="100"/><App Id="A1" Version="12" Result="100"/><App Id="BA" Version="12" Result="100"/></Applications></Office></Software></GenuineResults>  

Spsys.log Content: 0x80070002

Licensing Data-->
Software licensing service version: 6.1.7601.17514

Name: Windows(R) 7, Ultimate edition
Description: Windows Operating System - Windows(R) 7, OEM_SLP channel
Activation ID: 7cfd4696-69a9-4af7-af36-ff3d12b6b6c8
Application ID: 55c92734-d682-4d71-983e-d6ec3f16059f
Extended PID: 00426-00178-926-600010-02-1033-7601.0000-2532013
Installation ID: 006400172266295715606582791651534093517722876423132323
Processor Certificate URL: http://go.microsoft.com/fwlink/?LinkID=88338
Machine Certificate URL: http://go.microsoft.com/fwlink/?LinkID=88339
Use License URL: http://go.microsoft.com/fwlink/?LinkID=88341
Product Key Certificate URL: http://go.microsoft.com/fwlink/?LinkID=88340
Partial Product Key: 2C9T3
License Status: Notification
Notification Reason: 0xC004F200 (non-genuine).
Remaining Windows rearm count: 4
Trusted time: 9/10/2013 3:47:57 PM

Windows Activation Technologies-->
HrOffline: 0x00000000
HrOnline: 0xC004C4A2
HealthStatus: 0x0000000000000000
Event Time Stamp: 9:10:2013 00:18
ActiveX: Registered, Version: 7.1.7600.16395
Admin Service: Registered, Version: 7.1.7600.16395
HealthStatus Bitmask Output:


HWID Data-->
HWID Hash Current: MAAAAAEABAABAAEAAAABAAAAAQABAAEAJJSUtADXSOSqdm6ymLvw/bAvbE+iIEbK

OEM Activation 1.0 Data-->
N/A

OEM Activation 2.0 Data-->
BIOS valid for OA 2.0: yes
Windows marker version: 0x20001
OEMID and OEMTableID Consistent: yes
BIOS Information: 
  ACPI Table Name    OEMID Value    OEMTableID Value
  APIC            INTEL         DG41RQ  
  FACP            INTEL        DG41RQ
  HPET            INTEL         DG41RQ  
  MCFG            INTEL         DG41RQ  
  SLIC            HPQOEM        SLIC-WKS