Have some concerns whether the key used is legitimate or not, ran the MGAdiag tool, here are results.
Diagnostic Report (1.9.0027.0):
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Windows Validation Data-->
Validation Code: 0
Cached Online Validation Code: 0x0
Windows Product Key: *****-*****-4CDTX-CHCP6-QXQQ3
Windows Product Key Hash: J52Z0BkOgqk1Hw8SkJa+dhM9caE=
Windows Product ID: 00371-177-0668474-85541
Windows Product ID Type: 5
Windows License Type: Retail
Windows OS version: 6.1.7601.2.00010100.1.0.048
ID: {7791362E-35FF-4C99-876D-5A8865150ABC}(1)
Is Admin: Yes
TestCab: 0x0
LegitcheckControl ActiveX: N/A, hr = 0x80070002
Signed By: N/A, hr = 0x80070002
Product Name: Windows 7 Professional
Architecture: 0x00000000
Build lab: 7601.win7sp1_gdr.130318-1533
TTS Error:
Validation Diagnostic:
Resolution Status: N/A
Chris Sykes