What is the standard value of Start?

Frozen Tweaks writes 1 when you switch the tweak off, which is the value it treats as the Windows standard. With the tweak on, Start is 0.

Is "Disable ETW Autologgers" safe to switch on?

Safe for a gaming PC, with a benefit you are unlikely to measure. The main cost: Windows keeps fewer diagnostics, so troubleshooting network or update problems gets harder.

Is "Disable ETW Autologgers" free in Frozen Tweaks?

It is part of Frozen Pro and Elite. You can also make the change by hand with the values on this page.

Disabling ETW autologger sessions: what they record and what you lose

Frost LIVENetworkProUndo: YesUpdated Oct 8, 2026View as Markdown

Short answer

Updated Oct 8, 2026

Autologgers are event tracing sessions Windows starts at boot to record diagnostics for networking, updates and telemetry. Each has a Start value; 0 keeps it from starting. This tweak switches off a set of diagnostic sessions. In the registry it sets Start to 0 under HKLM\SYSTEM\CurrentControlSet\Control\WMI\Autologger\DiagLog, and 2 more values.

In the app

Disable ETW AutologgersPRO

Registry

HKLMSYSTEM\CurrentControlSet\Control\WMI\Autologger\DiagLog

Start10

What the switch writes. Your current value may differ. 2 more changes below.

What it does

In the app the switch is called "Disable ETW Autologgers", described there as: Stops verbose network/diag autologgers that add CPU jitter.

When it helps, and when it hurts

When it helps

Removing constant low-level logging, which adds a little disk and processor work.

When it hurts

Windows keeps fewer diagnostics, so troubleshooting network or update problems gets harder.
The saving is small on a modern PC.

What it writes

Exactly what the switch changes, read from the app's source. Switching it off is what the app writes when you turn the tweak off again.

Registry values the switch writes.
Key and value	With the tweak	Switching it off
HKLMSYSTEM\CurrentControlSet\Control\WMI\Autologger\DiagLogStart	0	1
HKLMSYSTEM\CurrentControlSet\Control\WMI\Autologger\WiFiSessionStart	0	1
HKLMSYSTEM\CurrentControlSet\Control\WMI\Autologger\LwtNetLogStart	0	1

From the app's source (etw_autologgers_off.hpp), app 2.0.0, checked Oct 8, 2026.

The same change by hand

You do not need the app for this one. These commands make the changes from the table above. Run them in a Command Prompt opened as administrator, and make a restore point first.

Make the change · CMD

reg add "HKLM\SYSTEM\CurrentControlSet\Control\WMI\Autologger\DiagLog" /v "Start" /t REG_DWORD /d 0 /f
reg add "HKLM\SYSTEM\CurrentControlSet\Control\WMI\Autologger\WiFiSession" /v "Start" /t REG_DWORD /d 0 /f
reg add "HKLM\SYSTEM\CurrentControlSet\Control\WMI\Autologger\LwtNetLog" /v "Start" /t REG_DWORD /d 0 /f

Put it back · CMD

reg add "HKLM\SYSTEM\CurrentControlSet\Control\WMI\Autologger\DiagLog" /v "Start" /t REG_DWORD /d 1 /f
reg add "HKLM\SYSTEM\CurrentControlSet\Control\WMI\Autologger\WiFiSession" /v "Start" /t REG_DWORD /d 1 /f
reg add "HKLM\SYSTEM\CurrentControlSet\Control\WMI\Autologger\LwtNetLog" /v "Start" /t REG_DWORD /d 1 /f

See what it is set to now · CMD

reg query "HKLM\SYSTEM\CurrentControlSet\Control\WMI\Autologger\DiagLog" /v "Start"

How to undo it

In the app: Yes

Switching it off sets a standard Windows value, which may not be exactly how you had it.

Switch the tweak off in Frozen Tweaks. It writes Start back to 1, Start back to 1, Start back to 1.

Changing several settings at once? The app's Make a restore point button, on every plan, makes a Windows restore point before you start.

Verdict

Safe for a gaming PC, with a benefit you are unlikely to measure.

Questions

What does the "Disable ETW Autologgers" tweak change in Windows?: In the registry it sets Start to 0 under HKLM\SYSTEM\CurrentControlSet\Control\WMI\Autologger\DiagLog, and 2 more values. The full list is in the table on this page, read from the app's source.
What is the standard value of Start?: Frozen Tweaks writes 1 when you switch the tweak off, which is the value it treats as the Windows standard. With the tweak on, Start is 0.
Is "Disable ETW Autologgers" safe to switch on?: Safe for a gaming PC, with a benefit you are unlikely to measure. The main cost: Windows keeps fewer diagnostics, so troubleshooting network or update problems gets harder.
How do I undo it?: Switch the tweak off in Frozen Tweaks. Switching it off sets a standard Windows value, which may not be exactly how you had it.
Is "Disable ETW Autologgers" free in Frozen Tweaks?: It is part of Frozen Pro and Elite. You can also make the change by hand with the values on this page.

In the app