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Q. What does my machine show a Test Mode stamp in the bottom right corner of my desktop?Dept - System ConfigurationA.

August 29, 2013

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Q. What does my machine show a Test Mode stamp in the bottom right corner of my desktop? Dept - System Configuration

A. If your system shows a "Test Mode" stamp in the bottom right corner of your display you have likely turned on test signing of drivers.

This can be confirmed with the bcdedit /enum command as shown below and note the testsigning value.

C:Windowssystem32>bcdedit /enumWindows Boot Manager--------------------identifier {bootmgr}device partition=DeviceHarddiskVolume7description Windows Boot Managerlocale en-USinherit {globalsettings}bootshutdowndisabled Yesdefault {current}resumeobject {5f599037-de4a-11e1-8931-b2ebfcc6f15f}displayorder {current}toolsdisplayorder {memdiag}timeout 30Windows Boot Loader-------------------identifier {current}device partition=C:path Windowssystem32winload.exedescription Windows Server 2012locale en-USinherit {bootloadersettings}recoverysequence {5f59903b-de4a-11e1-8931-b2ebfcc6f15f}recoveryenabled Yestestsigning Yesallowedinmemorysettings 0x15000075osdevice partition=C:systemroot Windowsresumeobject {5f599037-de4a-11e1-8931-b2ebfcc6f15f}nx OptOutTo fix the problem turn off the test signing and enable the integrity checks as shown below.C:Windowssystem32>bcdedit.exe -set loadoptions ENABLE_INTEGRITY_CHECKSThe operation completed successfully.C:Windowssystem32>bcdedit.exe -set TESTSIGNING OFFThe operation completed successfully.