Forum Discussion
Windows security mitigations blocking multiple apps
Hello, As of a couple days ago, the steamwebhelper.exe was getting suspended by windows defender. A simple restart of steam would allow me to quickly open a game before it was suspended again (typically 30 seconds). Digging through forums I've tried everything recommended (whitelisting the .exe in windows defender, running as admin, deleting cef.win64 and cef.win7x64 as well as the webhelper app, disabling gpu acceleration, disabling web browser sandbox, uninstalling and reinstalling steam, and verifying windows, re-installing windows). (current event viewer error:
"Process '\Device\HarddiskVolume7\steam\bin\cef\cef.win64\steamwebhelper.exe' (PID xxxxx) was blocked from making system calls to Win32k.sys." Im not sure what to try at this point, any help is appreciated, and no i dont have any ASUS software on my pc as it seems that was a common cause.
It is now also blocking Razer apps and Opera GX. Please help as i can barely use any apps.
Windows version: 25H2, OS Build: 26200.8655
Hardware:
CPU- Ryzen 5 7600x
Motherboard- Asrock B650E PG Riptide
RAM- 32gb teamgroup DDR5
GPU- MSI Radeon RX 6950XT
Storage- 1 Samsung 970 EVO Plus 2TB, 2 Samsung 980 Pros
1 Reply
- JlaysiaCopper Contributor
The most probable cause is a conflict with gaming or hardware monitoring tools that use low-level drivers (like WinRing0). These are known to trigger Windows security blocks .