RE: E6420 Boot loop after installing Windows 7 Pro
In this case we would suggest you to run diagnostics on both the system. Alternatively we can you please check when you tap the F8 key on the systems does it come up with boot options and are you able to boot into safe mode on both the systems .
Kindly private message the service tag of both the system and let us know which one is on 32bit and 64 bit .
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