Pc rebooted during updates worked fine for awhiland now is not genuine

Are you sure your version was genuine?

Run this to double check http://go.microsoft.com/fwlink/?linkid=52012

Copy and paste all the contents here.

This tutorial by Brink should be helpful.

Windows Genuine and Activation Issue Posting Instructions

It's run fine for almost 5 years, I'll try that tutorial

Code:

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

Validation Code: 0
Cached Online Validation Code: 0x0
Windows Product Key: *****-*****-GJY49-VJBQ7-HYRR2
Windows Product Key Hash: W5/6nm6F2UPXrCkY5xUhXb/+21g=
Windows Product ID: 00426-OEM-8992662-00006
Windows Product ID Type: 2
Windows License Type: OEM SLP
Windows OS version: 6.1.7601.2.00010100.1.0.001
ID: {D3556D82-2ABB-4DF6-90B3-AA8F7F0247B1}(3)
Is Admin: Yes
TestCab: 0x0
LegitcheckControl ActiveX: N/A, hr = 0x80070002
Signed By: N/A, hr = 0x80070002
Product Name: Windows 7 Ultimate
Architecture: 0x00000009
Build lab: 7601.win7sp1_gdr.150113-1808
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_E2AD56EA-765-b01a_E2AD56EA-766-0_E2AD56EA-148-80004005_16E0B333-89-80004005_B4D0AA8B-1029-80004005

Browser Data-->
Proxy settings: N/A
User Agent: Mozilla/4.0 (compatible; MSIE; 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>{D3556D82-2ABB-4DF6-90B3-AA8F7F0247B1}</UGUID><Version>1.9.0027.0</Version><OS>6.1.7601.2.00010100.1.0.001</OS><Architecture>x64</Architecture><PKey>*****-*****-*****-*****-HYRR2</PKey><PID>00426-OEM-8992662-00006</PID><PIDType>2</PIDType><SID>S-1-5-21-3381984707-3329604537-248464733</SID><SYSTEM><Manufacturer>System  manufacturer</Manufacturer><Model>System Product  Name</Model></SYSTEM><BIOS><Manufacturer>American  Megatrends Inc.</Manufacturer><Version>2003    </Version><SMBIOSVersion major="2"  minor="6"/><Date>20101214000000.000000+000</Date></BIOS><HWID>41123207018400FE</HWID><UserLCID>1009</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/><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>89388-707-0441865-65222</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: 6.1.7601.18257

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: 00426-00178-926-600006-02-4105-7601.0000-0962015
Installation ID: 001632309326609286251903329863247886503483239084193195
Processor Certificate URL: SpcService Web Service
Machine Certificate URL: RacService Web Service
Use License URL: UseLicenseService Web Service
Product Key Certificate URL: PkcService Web Service
Partial Product Key: HYRR2
License Status: Initial grace period
Time remaining: 4440 minute(s) (3 day(s))
Remaining Windows rearm count: 3
Trusted time: 07/04/2015 8:25:18 PM

Windows Activation Technologies-->
HrOffline: 0x00000000
HrOnline: 0x00000000
HealthStatus: 0x0000000000000000
Event Time Stamp: 4:6:2015 12:04
ActiveX: Registered, Version: 7.1.7600.16395
Admin Service: Registered, Version: 7.1.7600.16395
HealthStatus Bitmask Output:


HWID Data-->
HWID Hash Current: RAAAAAEABAABAAEAAQAEAAAABwABAAEAonYSVJbo5nbkeAiFCoCK5cLqxJY+b6Yt3OH/cCJgliXuL0SwIHchd0WwdlY=

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            121410        APIC1811
  FACP            121410        FACP1811
  HPET            121410        OEMHPET 
  MCFG            121410        OEMMCFG 
  OEMB            121410        OEMB1811
  DMAR            AMI        OEMDMAR
  ASPT            121410        PerfTune
  OSFR            121410        OEMOSFR 
  SSDT            DpgPmm        CpuPm

Thanks for adding the code box. It does make it easier to read.

One more thing if you could. It would be handy if you filled in your system specs.

Here is another Brink tutorial that will help.

System Info - See Your System Specs

It appears like you have a OEM/SLP key installed on a after market retail motherboard. That will not work.

You have a Asus retail motherboard. (Motherboard ASUSTeK Computer INC. P7P55D PRO) with a Asus Bios with a COA key that is for a OEM/SLP factory install of Windows 7.

That makes it a counterfeit installation.
Why it took so long to show up; I have no idea.
OEM/SLP keys come preinstalled on a factory made computer and can not be used on any other computer legally.

Your installation came originally from ACER/Gateway.

You will need to install with a legal COA key.

What is the Windows Certificate of Authenticity?

Newegg, Amazon or like me. I buy my Windows 7 from a local retailer.
They are made by Microsoft. Come in a nice sealed plastic box with the DVD and COA sticker.

The GRUB loader is probably the result of having had an Activation exploit installed - this acts as an interface between Windows and the motherboard, and tricks Windows into thinking the machine is properly licensed.

There are number of things which can break the Exploit - the most likely being installing SP1, or running certain commands (such as CHKDSK or SFC) to restore system files to their proper places.

The real question is where the original install came from - and can you persuade the vendor to refund the purchase price?