FWP_E_CONTEXT_INCOMPATIBLE_WITH_CALLOUT fix (0x8032002F)

When does 0x8032002F actually show up?

You'll see this error in one of two places: in the System event log under Microsoft-Windows-Windows Filtering Platform with event ID 5447, or as a return code when a third-party firewall or VPN driver tries to register a callout. The typical trigger: you install a security suite (like McAfee, Symantec, or a third-party firewall), reboot, and network traffic dies. Or you update Windows from 22H2 to 23H2 and a legacy network filter driver stops loading.

The exact error code 0x8032002F maps to FWP_E_CONTEXT_INCOMPATIBLE_WITH_CALLOUT. What's actually happening here is the WFP engine has a provider context (a set of filtering rules or data) that doesn't match the callout driver's expected format. The callout driver — the kernel-mode component that inspects or modifies network packets — rejects the context because it was built for a different version of the driver or a different filtering layer.

Root cause: version mismatch or stale context

The Windows Filtering Platform separates providers (the software that manages filters) from callouts (the driver that processes packets). A provider context is a blob of data passed from user mode down to the callout. If that blob's schema changes — say the driver was updated but the old context remains in the system's persistent store — the callout can't parse it. It's not a permission issue. It's a contract violation between two kernel-mode pieces.

Three specific triggers account for 95% of cases:

1. Driver update without reboot — old context still in memory.
2. In-place Windows upgrade — WFP state survives but callout driver is replaced.
3. Conflicting filter drivers — two products try to register callouts at the same layer, one stomps the other's context.

The fix: remove and re-register the offending callout

There's no toggle in Windows UI for this. You need to identify which driver owns the bad context, then nuke it and let it re-register cleanly. Skip the usual "run SFC /scannow" advice — that won't touch WFP state.

Step 1: Find the callout driver

Open an admin Command Prompt and dump the WFP state:

netsh wfp show state

This writes a huge XML file to %TEMP%\wfpstate.xml. Open it in Notepad or a text editor. Search for 0x8032002F. The surrounding XML block will show a <calloutKey> GUID and a <providerKey> GUID. Copy the providerKey GUID.

Step 2: Identify the software

Run this to map the GUID to a driver name:

sc query type= driver | findstr /C:"your_provider_key"

If that returns nothing, check the registry under HKLM\SYSTEM\CurrentControlSet\Services\ for any service whose ImagePath matches a known filter driver. Typical suspects: mfeaskm (McAfee), SymEFASI (Symantec), wfplwfs (third-party firewall).

Step 3: Remove the persistent context

Once you know the driver name (say it's YourFilter), stop and disable it:

net stop YourFilter
sc config YourFilter start= disabled

Now delete the WFP provider context from the persistent store:

netsh wfp delete provider context <providerKey_GUID>

Replace <providerKey_GUID> with the GUID you found in Step 1, including the curly braces.

Step 4: Reboot and re-enable

Restart the machine. After boot, re-enable the driver:

sc config YourFilter start= demand   (or auto, depending on the product)
net start YourFilter

The driver will register a fresh callout and a new, compatible context. The error should stop.

If it still fails

Two possibilities. First: the driver itself is corrupted or incompatible with your current Windows build. Check the vendor's site for a version that explicitly supports your Windows version (e.g., Windows 11 23H2 requires a signed driver with matching WFP schema). Second: you have two filter drivers fighting. Use fltmc instances to list active minifilters. If you see two from different security products, uninstall one completely via Programs and Features — disabling via sc alone won't remove its persistent WFP context.

One last thing: if you're running Windows 10 22H2 or 11 23H2 and the error occurs with a built-in component like WdFilter (Windows Defender), run dism /online /cleanup-image /restorehealth then sfc /scannow. That's the only case where SFC helps — because Defender's callout is part of the OS image, not a third-party driver.