I'm posting this here because tech support wasn't able to help me. Yesterday, I installed the Windows Security update KB4556846 for Windows 8.1. There was problem during installation that resulted in the update failing to install. During a second attempt, the update installed fine. Shortly after installing I noticed 27 warnings in Windows Event Viewer, marked as Event 51: An error was detected on device \Device\Harddisk0\DR0 during a paging operation. All 28 events were recorded over a range of two seconds. The device in question is my boot drive, a Crucial SSD. ESET is currently installed on that drive. These events are also reported as S.M.A.R.T. Reported UnCorrectable Errors, however multiple S.M.A.R.T. software suites continue to report the drive as healthy.
The first thing I did was shut down the PC and made sure there was no issues with the cables. Later in the night, these series of warnings happened three more times in batches of 27, 27, and 12 events. At this point, I determined that every single event was proceeded several seconds by ESET installing a new version of the detection engine. I believe it started with detection engine 21316. It is written in my support ticket at least.
I put in a support ticket #400433 - "Disk Errors during Detection Engine updates after Windows Update" While waiting, I performed some troubleshooting.
I performed the following steps:
1. I uninstalled ESET Internet Security completely. Then I reinstalled it. Within a couple minutes of the installation coming to completion, including the installation of detection engine 21322, there was a new batch of Event 51 warnings. Since it had been a couple minutes this time between the warnings and the detection engine installation, I thought it might not be related to ESET after all so I moved on to Windows Update.
2. I uninstalled the update KB4556846 successfully and waited, however later on there was a new batch of Event 51 warnings. Once again, they were recorded within seconds of the installation of the ESET detection engine this time 21323.
I briefly chatted with tech support regarding my ticket, however I was told the following:
I know what Event 51 means, but I am at a loss over the specific cause and the only clue I have is the installation of ESET detection engines. Aside from one case after reinstalling ESET, every single series of warnings were reported within ten seconds of the ESET log Detection Engine was successfully updated to version 21322 (20200513).
Unfortunately any current ESET logs will only go back to the reinstallation. I have my eis_logs.zip file made using the ESET log collector program (Default Collection profile, 5 day), but I'm not sure if I should be posting that in public.