Cybersecurity & Malware

0X800B0113

CERT_E_INVALID_POLICY (0x800B0113) — what breaks and how to fix it

Happens when Windows can't verify a certificate's policy constraints. Usually blocks HTTPS connectio...

Intermediate 👁 108 May 26, 2026

NET::ERR_CERT_DATE_INVALID

Fix NET::ERR_CERT_DATE_INVALID in Chrome (Clock Fix)

Your PC's clock is wrong. Chrome freaks out because the certificate dates don't match. Fix the date ...

Beginner 👁 341 May 26, 2026

0X80094801

CERTSRV_E_NO_CERT_TYPE (0x80094801) Fix

This error means the certificate request is missing template info. Quick fix: set the template expli...

Intermediate 👁 96 May 26, 2026

0XC00D2733

Fix 0XC00D2733: DRM Playback Error in Windows Media

This DRM error blocks media playback in Windows Media Player or apps using it. Usually a corrupted l...

Intermediate 👁 60 May 26, 2026

0XC00D2732

NS_E_DRM_UNABLE_TO_CREATE_ENCRYPT_OBJECT (0XC00D2732) Fix

DRM component error in Windows Media Player or Edge. Usually a corrupted DRM data store or expired l...

Intermediate 👁 68 May 26, 2026

0XC00002FD

Fix STATUS_KDC_UNKNOWN_ETYPE 0xC00002FD encryption type error

Kerberos auth fails when the KDC doesn't support the encryption type requested by the client. Classi...

Intermediate 👁 121 May 26, 2026

0XC00002F9

Fixing STATUS_PKINIT_NAME_MISMATCH (0XC00002F9)

Kerberos PKINIT name mismatch error. Almost always a misconfigured SAN or UPN in the certificate. Qu...

Intermediate 👁 141 May 26, 2026

0XC0210030

BitLocker Error 0XC0210030: Drive Too Small? Here's the Fix

Your drive is too small for BitLocker. The fix? Resize the partition to at least 1.5 GB, or use a wo...

Intermediate 👁 126 May 26, 2026

0X00002143

Fix 0X00002143: Can't Nest Local Groups in Mixed Domain

This error pops up when you try to nest a security-enabled local group inside another group in a mix...

Intermediate 👁 62 May 26, 2026

0X0000216F

Fix ERROR_DS_SRC_DC_MUST_BE_SP4_OR_GREATER (0X0000216F)

This error hits when a pre-SP4 NT4 domain controller tries to replicate to a Windows 2000+ DC. The f...

Intermediate 👁 54 May 26, 2026

MSRT-2025-03

Scam warning: 'Windows Defender Security Center' fake alert fix

That scary Windows Defender popup screaming about viruses? It's a fake. Here's how to kill it in 30 ...

Beginner 👁 170 May 26, 2026

0X00002166

Fix ERROR_DS_CANT_ADD_TO_GC (0X00002166) Attribute Replication Blocked

That error means you're trying to add a security-sensitive attribute to the Global Catalog, and AD w...

Advanced 👁 49 May 26, 2026

0X80093000

CRYPT_E_OSS_ERROR (0X80093000) Fix – Certificate Encode/Decode Problem

This error means Windows can't read a certificate's encoding. Usually happens after an update or imp...

Intermediate 👁 55 May 26, 2026

0x80070424

Windows Defender won't start: 0x80070424 fix

The service is missing or corrupted after a security tool uninstall or update. Quick fix: re-registe...

Intermediate 👁 101 May 26, 2026

ERROR_ACCOUNT_LOCKED_OUT (0x00000775)

Fix 'Account Locked Out' Errors in Windows Active Directory

That lockout error usually means someone's typing the wrong password repeatedly. Here's how to find ...

Intermediate 👁 94 May 26, 2026

0X80091006

CRYPT_E_AUTH_ATTR_MISSING (0x80091006) – The Fixes You Need

This error means a signed or encrypted message is missing a required authenticated attribute. It's a...

Intermediate 👁 72 May 26, 2026

0X80090015

NTE_BAD_PUBLIC_KEY 0x80090015 — Provider key is invalid

Happens when Windows can't read a CNG key file — often after a BitLocker unlock or cert import. The ...

Intermediate 👁 114 May 26, 2026

0XC000017F

STATUS_LM_CROSS_ENCRYPTION_REQUIRED 0XC000017F Fix

This error blocks Windows logon when NTLM v1 is rejected and v2 isn't trusted. It's a security misma...

Intermediate 👁 91 May 26, 2026

0X8001012C

CO_E_WRONGTRUSTEENAMESYNTAX (0x8001012C) - Fix in 2024

This error means Windows can't parse a security descriptor's trustee name. Fix it by clearing stale ...

Intermediate 👁 52 May 26, 2026

0XC000040F

Fix 0XC000040F: Smart card cert revoked on login

Your domain controller's certificate for smart card logon got revoked. Here's how to fix it, startin...

Intermediate 👁 73 May 26, 2026

0X80090341

Fix SEC_E_KDC_UNABLE_TO_REFER (0x80090341) in Windows

This error pops up when Kerberos can't get a referral ticket between domains. It's common after doma...

Intermediate 👁 42 May 26, 2026

0X80090326

SEC_E_ILLEGAL_MESSAGE (0x80090326) Fix for Windows Auth

This error shows up when Kerberos or NTLM authentication gets mangled. Common in VPN or proxy setups...

Intermediate 👁 188 May 26, 2026

0X80096004

Fix TRUST_E_CERT_SIGNATURE (0x80096004) in 2 Minutes

That cert signature error usually means a corrupted or expired root certificate. Here's how to fix i...

Beginner 👁 126 May 26, 2026

0X800B0106

CERT_E_PURPOSE (0X800B0106): Quick Fixes for Certificate Purpose Errors

This error pops up when a certificate is used for something its CA didn't intend. I'll show you the ...

Intermediate 👁 51 May 26, 2026