"Windows 7 Build 7601, Copy of windows not genuine"!!!

I turned on my computer this morning and an occasional CHKDSK (happens maybe once a month, might have a damaged hard drive) started performing before the startup screen, deleting files and recovery.
When that finished, it took ten minutes to load up the desktop and the messages "Windows 7 Build 7601 Copy of windows not genuine" shows at the bottom right of my desktop with a black background. Also, I opened Firefox and it was missing a file, "nspr4.dll", might be due to the CHKDSK deleting a false corrupt file (which it does a lot), but Firefox works now.
I have searched for a solution like right clicking properties on my computer and then going to windows activation, but it says, "Not available". I've seen people posting their diagnostic report, but I do not know how to check that.

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

Validation Code: 50
Cached Online Validation Code: N/A, hr = 0xc0000034
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: {6FEF5435-CA37-46C0-8E18-B60A2D753BB7}(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.120830-0333
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 Professional Plus 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 (x86)\Mozilla Firefox\firefox.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>{6FEF5435-CA37-46C0-8E18-B60A2D753BB7}</UGUID><Version>1.9.0027.0</Version><OS>6.1.7601.2.00010300.1.0.003</OS><Architecture>x64</Architecture><PKey>*****-*****-*****-*****-RMV82</PKey><PID>00359-OEM-8992687-00095</PID><PIDType>2</PIDType><SID>S-1-5-21-3947568939-1771625424-1053268917</SID><SYSTEM><Manufacturer>Dell Inc.</Manufacturer><Model>Inspiron 580 </Model></SYSTEM><BIOS><Manufacturer>Dell Inc.</Manufacturer><Version>A07</Version><SMBIOSVersion major="2" minor="6"/><Date>20101113000000.000000+000</Date></BIOS><HWID>90053307018400FE</HWID><UserLCID>0409</UserLCID><SystemLCID>0409</SystemLCID><TimeZone>Eastern Standard Time(GMT-05:00)</TimeZone><iJoin>0</iJoin><SBID><stat>3</stat><msppid></msppid><name></name><model></model></SBID><OEM><OEMID>DELL </OEMID><OEMTableID>FX09 </OEMTableID></OEM><GANotification/></MachineData><Software><Office><Result>100</Result><Products><Product GUID="{90120000-0011-0000-0000-0000000FF1CE}"><LegitResult>100</LegitResult><Name>Microsoft Office Professional Plus 2007</Name><Ver>12</Ver><Val>BD5194D86EA9586</Val><Hash>dvd8qTQTt91pv6vV2zQeUEesPi0=</Hash><Pid>89409-707-0537823-65732</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"/></Applications></Office></Software></GenuineResults>

Spsys.log Content: 0x80070002

Licensing Data-->
C:\Windows\system32\slmgr.vbs(1333, 5) (null): 0xC0000034

Windows Activation Technologies-->
HrOffline: 0x00000000
HrOnline: 0x00000000
HealthStatus: 0x0000000000000000
Event Time Stamp: 10:13:2012 00:03
ActiveX: Registered, Version: 7.1.7600.16395
Admin Service: Registered, Version: 7.1.7600.16395
HealthStatus Bitmask Output:


HWID Data-->
HWID Hash Current: MgAAAAEAAgABAAEAAAAEAAAAAQABAAEAJJSkrEowgJYmeoIJ3CViPcZprl499Q4edlY=

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 FX09
FACP DELL FX09
HPET DELL OEMHPET
MCFG DELL OEMMCFG
SLIC DELL FX09
OSFR DELL FX09
OEMB DELL FX09
ASF! LEGEND I865PASF
SSDT DpgPmm CpuPm

Another one?

Noel is great at this kind of thing - I expect he will have a look when he comes online.

Was on line got the blue screen of death (more and more frequently) when I turned my laptop back on there is a message in the bottom right corner of my screen saying that my windows 7 in not genuine build 7601. It was preloaded on this laptop when I bought it.