Is "Disable Windows Update Medic" 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.

WaaSMedicSvc: what Windows Update Medic does and disabling it

Frost LIVEWindowsProUndo: YesUpdated Oct 8, 2026View as Markdown

Short answer

Updated Oct 8, 2026

WaaSMedicSvc repairs Windows Update when its components are damaged or switched off. It is the reason Windows Update services come back after you disable them. This tweak sets it to Disabled. It sets the WaaSMedicSvc service to Disabled.

In the app

Disable Windows Update MedicPRO

Service

WaaSMedicSvc Windows Update Medic Service

Startup typeManualDisabled

What the switch writes. Your current value may differ.

What it does

WaaSMedicSvc repairs Windows Update when its components are damaged or switched off. It is the reason Windows Update services come back after you disable them. This tweak sets it to Disabled.

In the app the switch is called "Disable Windows Update Medic", described there as: Disables WaaSMedicSvc to stop self-healing of Windows Update.

When it helps, and when it hurts

When it helps

Keeping other Windows Update changes in place instead of having them undone.

When it hurts

Windows Update can no longer repair itself.
Windows protects this service, so the change may be refused or reverted by an update.

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.

Windows services the switch changes: their startup type.
Service	With the tweak	Switching it off
WaaSMedicSvcWindows Update Medic Service	Disabled	Manual

From the app's source (waasmedic_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

sc config "WaaSMedicSvc" start= disabled

Put it back · CMD

sc config "WaaSMedicSvc" start= demand

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 sets WaaSMedicSvc to Manual.

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

Only makes sense together with a deliberate decision to control updates yourself. Keep installing security updates.

Questions

What does the "Disable Windows Update Medic" tweak change in Windows?: It sets the WaaSMedicSvc service to Disabled.
Is "Disable Windows Update Medic" safe to switch on?: Only makes sense together with a deliberate decision to control updates yourself. Keep installing security updates. The main cost: Windows Update can no longer repair itself.
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 Windows Update Medic" 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