Build 7601 not a genuine copy of Windows. Problem is it is

I have a problem. I have a Dell Inspiron 1545 laptop that I've had for a good 2 years now, since March. It came with Windows 7, and I know it's genuine because it never had the message at the bottom right. Today however, a message saying "Windows 7 Build

7601 this copy of Windows is not genuine" But it is! What do I do? Apologizes if this is in the wrong topic, I dunno which topic it goes in.

Okay I did what the comments said. The scan said this. I hope I copied it correctly.

Diagnostic Report (1.9.0027.0):

-----------------------------------------

Windows Validation Data-->

Validation Code: 0

Cached Online Validation Code: 0x0

Windows Product Key: *****-*****-QCPVQ-KHRB8-RMV82

Windows Product Key Hash: +Rj3N34NLM2JqoBO/OzgzTZXgbY=

Windows Product ID: 00359-OEM-8992687-00095

Windows Product ID Type: 2

Windows License Type: OEM SLP

Windows OS version: 6.1.7601.2.00010300.1.0.003

ID: {56BEDA7A-3C5F-4CBF-8602-3F18018D482E}(1)

Is Admin: Yes

TestCab: 0x0

LegitcheckControl ActiveX: N/A, hr = 0x80070002

Signed By: N/A, hr = 0x80070002

Product Name: Windows 7 Home Premium

Architecture: 0x00000009

Build lab: 7601.win7sp1_gdr.120330-1504

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: 102

Microsoft Office Home and Student 2007 - 100 Genuine

OGA Version: N/A, 0x80070002

Signed By: N/A, hr = 0x80070002

Office Diagnostics: 77F760FE-153-80070002_7E90FEE8-175-80070002_025D1FF3-364-80041010_025D1FF3-229-80041010_025D1FF3-230-1_025D1FF3-517-80040154_025D1FF3-237-80040154_025D1FF3-238-2_025D1FF3-244-80070002_025D1FF3-258-3_B4D0AA8B-920-80070057

Browser Data-->

Proxy settings: N/A

User Agent: Mozilla/4.0 (compatible MSIE 8.0 Win32)

Default Browser: C:Program Files (x86)Mozilla Firefoxfirefox.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: {56BEDA7A-3C5F-4CBF-8602-3F18018D482E}1.9.0027.06.1.7601.2.00010300.1.0.003x64*****-*****-*****-*****-RMV8200359-OEM-8992687-000952S-1-5-21-901074370-773175161-1240351923Dell

Inc.Inspiron 1545 Dell Inc.A1320091023000000.000000+000A1E53007018400F804090409Eastern

Standard Time(GMT-05:00)03DELL WN09 102100Microsoft Office Home and Student 20071219

Spsys.log Content: 0x80070002

Licensing Data-->

Software licensing service version: 6.1.7601.17514

Name: Windows® 7, HomePremium edition

Description: Windows Operating System - Windows® 7, OEM_SLP channel

Activation ID: d2c04e90-c3dd-4260-b0f3-f845f5d27d64

Application ID: 55c92734-d682-4d71-983e-d6ec3f16059f

Extended PID: 00359-00178-926-800095-02-1033-7600.0000-0252010

Installation ID: 019121033815416731517482132196769033282823781361243193

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: RMV82

License Status: Licensed

Remaining Windows rearm count: 4

Trusted time: 5/20/2012 7:38:57 PM

Windows Activation Technologies-->

HrOffline: 0x00000000

HrOnline: 0x00000000

HealthStatus: 0x0000000000000000

Event Time Stamp: 2:19:2012 18:41

ActiveX: Registered, Version: 7.1.7600.16395

Admin Service: Registered, Version: 7.1.7600.16395

HealthStatus Bitmask Output:

HWID Data-->

HWID Hash Current: LgAAAAEAAQABAAIAAAABAAAAAgABAAEA6GEASeCf2jOkdHYOKB9UbVSUSNdGyg==

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 DELL WN09

FACP DELL WN09

HPET DELL WN09

MCFG DELL WN09

SLIC DELL WN09

SSDT PmRef CpuPm

Also, the version of Windows 7 I have is Home Premium.

Does anyone know now?

Wait a second! I noticed, after I did the scan thing the message saying it's not genuine is gone! What on Earth is going on?

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