I have tried multiple ways to resolve this problem (System Update Readiness Tool, SFC scan, Microsoft Fix it, manual installation, etc.) but to no avail.
When I try to install the Windows 7 Service Pack 1 for x64-based Systems (KB976932) via Windows Update, the installation fails with an error code 800B0100.
When I tried to manually install the SP, an error message appeared with details: "trust_e_nosignature (0x800b0100)."
I am pretty frustrated considering the number of unsuccessful attempts and time I've thrown into fixing this problem. So, hoping that it will be addressed here, I have attached my CheckSUR log. Please let me know if any more information is needed.