CraigB,

All looks fine inside there. No errors or unknown drivers found. System currently running is a former enterprise model: http://h20566.www2.hp.com/hpsc/swd/public/readIndex?taskId=135&prodNameId=3352968&sp4ts.oid=3352968&ac.admitted=1440194620811.1123376534.199480143&swEnvOID=1093&action=listDriver&swLang=13&prodSeriesId=3352967&cc=us

It’s old, but Win 7 would report, on average, one critical error a month. Same system, different operating system, but this is an upgrade, not a clean install as Win 7 was.