How long should Rollup 2 for Exchange 2010 SP1 take? I have a 2GHz AMD Opteron 246 with 6GB of memory running Win2008R2 Std. I've disabled all Exchange services, turned off antivirus, turned off DEP except for core services, set a HOSTS file with crl.microsoft.com set to 127.0.0.1, and turned over CRL revocation checking. The Rollup has been running for hours with mscorsvw.exe eating 95-100% of the CPU. Every so often (15 - 20 minutes), mscorsvw.exe errors out and I close it and then it starts back up again. How long should I expect this to run? Whenever mscorsvw.exe errors, is it restarting or just continuing on the next .NET assembly? Any comments would be welcome. I can be reached at firstname.lastname@example.org.