MBRFilter
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Reports of startup repair
Receiving reports that some people are having issues with startup repair running after installing this driver.
- Person was not running secure boot
- Ruled out incompatibility with Kaspersky and Malwarebytes (driver runs without issues when these are installed).
We've deployed this out to a bunch of devices and have had big problems. Some devices, regardless of the OS, booted into automatic repair which subsequently failed or just failed to boot entirely. Not sure whether there's a recent change to AV software or Windows itself that's caused this. We've had to boot the devices into a recovery CD and use the command console to load the SYSTEM hive and remove the "MBRFilter" entry from the CurrentControlSet\Control\Classes{GUID}\UpperFilters key manually.