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Windows 10 May 2020 Update, also known as version 2004, has been causing ESENT warnings for a number of users. The Extensible Storage Engine (ESE), which includes the ESENT.DLL, has been included in all release of Windows since Windows 2000 and it’s used by a number of Windows components including Windows Update.

ESENT (ESE Runtime) runs on Windows 10 after login and it also helps in desktop searches and indexing of your media catalog in the operating system, according to a Microsoft moderator.

The problem with ESENT has been widely reported by users on Microsoft’s answer forum and Reddit as some fear that the warning indicates potential performance issue. According to user reports and our own tests, Windows 10 version 2004 ESENT 642 warnings are eventually recorded in Event Viewer.

“Video.UI (23680,D,2) {B8A5865B-DCFF-4019-AA40-BEE2E42C0672}: The database format feature version 9080 (0x2378) could not be used due to the current database format 1568.20.0, controlled by the parameter 0x410022D8 (8920 | JET_efvAllowHigherPersistedFormat),” the error message in Event Viewer reads.

The problem can be confirmed by checking logs in the Event Viewer and root cause of this issue is not yet clear.

“I was stuttering like crazy too when playing R6S, I went from 150fps to 40/50fps, it was causing the OS to stutter also,” one user noted. “I got this error playing and my game start to stutter for few seconds like crazy,” another user wrote.

On my device, Event Viewer logged at least 3,100 ESENT 642 errors since May 28 when I upgraded to Windows 10 version 2004.

Users have noted that rolling back to Windows 10 version 1909 or 1903 removes the mysterious warning.

An official statement and workaround for ESENT 642 errors are not yet available.

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