Hash mismatch

Does anybody know how to fix this problem? It is related to a Windows 8 64-bit platform and seems to be rather common (see Web results for "Amd64\CNBJ2530.DPB" of prncacla.inf*"*).

No apparent malfunctions, but very slow startup, especially the first one at morning.

Below what appears in the CBS.log after multiple sfc /scannow(s) that say it is impossible to repair some damaged files.

2013-01-07 08:31:12, Info                  CSI    000006fc [SR] Beginning Verify and Repair transaction

2013-01-07 08:31:12, Info                  CSI    000006fd Hashes for file member \SystemRoot\WinSxS\amd64_prncacla.inf_31bf3856ad364e35_6.2.9200.16430_none_fdce12188b615b12\Amd64\CNBJ2530.DPB do not match actual file [l:36{18}]"Amd64\CNBJ2530.DPB" :

Found: {l:32 b:YCyRZUKsIhOc05lCRHw+OKYmzq2wt2CJT7Rixym+Hs4=} Expected: {l:32 b:n520k714Uu3utHa5JGQ6HQYbZphKhlMWq5pEmfnCDuw=}

2013-01-07 08:31:12, Info                  CSI    000006fe [SR] Cannot repair member file [l:36{18}]"Amd64\CNBJ2530.DPB" of prncacla.inf, Version = 6.2.9200.16430, pA = PROCESSOR_ARCHITECTURE_AMD64 (9), Culture neutral, VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, Type = [l:24{12}]"driverUpdate", TypeName neutral, PublicKey neutral in the store, hash mismatch

2013-01-07 08:31:12, Info                  CSI    000006ff Hashes for file member \SystemRoot\WinSxS\amd64_prncacla.inf_31bf3856ad364e35_6.2.9200.16430_none_fdce12188b615b12\Amd64\CNBJ2530.DPB do not match actual file [l:36{18}]"Amd64\CNBJ2530.DPB" :

Found: {l:32 b:YCyRZUKsIhOc05lCRHw+OKYmzq2wt2CJT7Rixym+Hs4=} Expected: {l:32 b:n520k714Uu3utHa5JGQ6HQYbZphKhlMWq5pEmfnCDuw=}

2013-01-07 08:31:12, Info                  CSI    00000700 [SR] Cannot repair member file [l:36{18}]"Amd64\CNBJ2530.DPB" of prncacla.inf, Version = 6.2.9200.16430, pA = PROCESSOR_ARCHITECTURE_AMD64 (9), Culture neutral, VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, Type = [l:24{12}]"driverUpdate", TypeName neutral, PublicKey neutral in the store, hash mismatch

2013-01-07 08:31:12, Info                  CSI    00000701 [SR] This component was referenced by [l:164{82}]"Package_86_for_KB2769165~31bf3856ad364e35~amd64~~6.2.1.0.2769165-12166_neutral_GDR"

I have tried to fix by uninstalling  and re-installing KB2769165, with no result. Any other ideas?