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Maximum value = 172800 (48 hours)

Default = every 12 hours

Value (in decimal) = 3600 - sweeps occur every one hour

Value (in decimal) = 172800 - sweeps occur every 48 hours

• This entry changes the delay in milliseconds between each individual BIOS attribute retrieval.

HKLM\SOFTWARE\Dell\TrustedDevice\

DWORD=MSBetweenAttributeReads

Minimum value in milliseconds = 500

Maximum value in milliseconds = 2000

Default = every 500 ms

Value (in decimal) = 500 - reads a different BIOS attribute every 500 ms

Value (in decimal) = 2000 - reads a different BIOS attribute every 2000 ms

• The following platforms are supported by BIOS Events & Indicators of Attack:

• Latitude 3301

• Latitude 3400

• Latitude 3500

• Latitude 5300

• Latitude 5300 2-in-1

• Latitude 5400

• Latitude 5401

• Latitude 5500

• Latitude 7200 2-in-1

• Latitude 7300

• Latitude 7400

• Latitude 7400 2-in-1

• Optiplex 7070 Ultra

• Optiplex 7071 Tower

• Precision 3540

• Precision 3541

• Precision 5540

• Precision 7540

• Precision 7740

• XPS 13 7390

• XPS 13 7390 2-in-1

• XPS 15 7590

Resolved Technical Advisories v2.1

• The Trusted Device product version is now in logging. [DPS-1194]

Technical Advisories v2.1

• Added May 4, 2020 - The Dell Latitude 3400 and Dell Latitude 3500 currently experience an issue waking from sleep mode with

Trusted Device installed. This issue is currently under investigation. Dell recommends that Trusted Device is not installed on these

platforms until this issue is resolved. [DPS-1608]

• In rare occurrences, the Trusted Device agent uses excessive computer resources resulting in delayed trackpad movement. As a work

around, change the MSBetweenAttributeReads value in the Registry in HKLM\SOFTWARE\Dell\TrustedDevice\. [DPS-862,

DPS-1071, DPS-1076]

• In rare occurrences, the Trusted Device agent fails to load properly resulting in computer crash or incorrect BIOS Verification results.

[DPS-1237]

• The Dell DiagnosticInfo utility does not properly collect text versions of the Dell Event log. [DPS-1168]

• The Trusted Device agent driver does not monitor all registry entries as expected. [DPS-1177]

Technical Advisories