HELP!!!!! Win 7 OEM Product key invalid!

Hi everyone,
I will tell my story about corrupt windows key

Everything is fine since yesterday I bought this laptop
But one day my laptop is infected with a virus, then I turn on my laptop... the screen turns dark and in the bottom right corner there is the words "Windows 7 Build 7601 The copy of this windows is not genuine"

Please...
Any help would be greatly appreciated.

Here is my MGDiag Code :

Code:

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

Validation Code: 50
Cached Online Validation Code: N/A, hr = 0xc004f012
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: {09706E4E-578C-4F99-B684-1B79A04A0769}(3)
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_ldr.160930-0600
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: 103 Blocked VLK
Microsoft Office Enterprise 2007 - 103 Blocked VLK
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

From the Partial report and from your system specs

1) Acer product key - Ultimate
specs state HP Business

2) the office install is non-genuine its going to a blocked VLK

You will need to re-install a Professional version and it should automatically validate
(this will depend on its SLIC table, which is not included on your >partial< report)

Roy