You have installed Hyper-V on Windows 11 and now Credential Guard will not enable. The Enable-CredentialGuard PowerShell cmdlet may fail silently. The Group Policy setting for Device Guard may appear grayed out. This happens because Hyper-V and Credential Guard both require virtualization-based security, but Credential Guard needs a specific hypervisor configuration that Hyper-V can disrupt. … Read more
When a local administrator account runs a command, installs software, or changes system settings, Windows 11 does not log that activity by default. Without auditing, you cannot tell whether the admin performed a legitimate task or a malicious action. Windows 11 includes a built-in audit policy that tracks every action taken by a local admin … Read more
You add a website to the Allow list in Microsoft Family Safety, but your child still cannot access it. This problem occurs because Family Safety uses multiple content filters that operate independently from the Allow list. The web filter, the app filter, and the search filter each maintain their own rules. This article explains why … Read more
After migrating a Certification Authority to a new server, you try to issue a new Encrypting File System certificate, but Windows 11 refuses to accept it. The error typically appears as “The certificate cannot be used for EFS” or “The requested certificate template is not supported by this CA.” This happens because the original EFS … Read more
Quick fix: Run Add-MpPreference -ExclusionProcess “C:\path\to\app.exe” in elevated PowerShell to exclude a specific executable from Defender Real-Time scanning. Confirm with Get-MpPreference | Select-Object -ExpandProperty ExclusionProcess. You have a build tool, a backup agent, or a developer-environment utility that triggers Defender scans on every file it writes — and that scan overhead is killing performance. Folder-level … Read more
Quick fix: Smart App Control blocks apps that aren’t signed by a recognized publisher or that lack a positive reputation in Microsoft’s cloud database. Check the Event Viewer under Applications and Services Logs → Microsoft → Windows → AppLocker → EXE and DLL for the exact reason. Sign the app, get the publisher onto Microsoft’s … Read more
Quick fix: Windows Hello face recognition needs an IR camera with a specific driver-side capability flag. A recent driver update may have stripped that flag from the device’s INF. Roll back the camera driver via Device Manager → Properties → Driver tab → Roll Back Driver. Re-enroll Hello. Your laptop has Windows Hello face sign-in. … Read more
Quick fix: Memory Integrity (HVCI) doesn’t support per-driver exceptions — it’s all-or-nothing. If a single driver isn’t HVCI-compatible, your options are: replace the driver with a compatible version, remove the device, or disable HVCI globally. Microsoft’s HVCI Readiness Tool flags the offending driver so you can decide which to do. You want Memory Integrity (HVCI) … Read more
Quick fix: The UAC prompt color indicates trust level. Blue means the app is signed by Microsoft and verified; yellow means signed by a third-party verified publisher; red means unsigned or untrusted; grey means standard Windows operation. The color isn’t a bug — it’s a visual security indicator. You ran an app on Windows 11 … Read more
Quick fix: 0% encryption stuck usually means BitLocker is waiting for TPM provisioning or for the drive to enter encryption-ready state. On new SSDs, the drive’s firmware may report “not ready” until first idle period. Wait 5 minutes. If still stuck, run manage-bde -on C: -used in elevated terminal to force the encrypt-used-only path which … Read more