Hi folks! I haven't been here in quite awhile [because I got all my problems solved here!]. But of course there is always one more: I am attempting to install Win7 on a Lenovo W540 w/8GB and the 2.70 CPU. I can run 8.1 on it fine, and I have also installed Vista [although many driver problems, but I still got it up enough to have it proclaim "genuine software". I can install the product key [that matches the Windows version] fine. But I cannot install the cert file LENOVO_V2.1_Cert.XRM-MS and get the error code 0x00000BBA The spool file was not found. Is this somehow related to the fact that the Win8/8.1 key is built into the BIOS? Do I need a[n even] new[er] Cert file? All else is fine, but only got about 3 weeks more to activate. Any help appreciated.