Cybersecurity & Malware

0XC000040C

STATUS_REVOCATION_OFFLINE_KDC (0xC000040C) Fix Guide

Kerberos can't verify a certificate's revocation status because it can't reach the CRL distribution ...

Intermediate 👁 47 Jun 7, 2026

0X80090002

NTE_BAD_HASH (0X80090002): Fix This Infuriating Windows Error

NTE_BAD_HASH means Windows can't verify a cryptographic hash. We'll show you how to fix it in 2 minu...

Intermediate 👁 35 Jun 7, 2026

0XC00002F6

STATUS_STRONG_CRYPTO_NOT_SUPPORTED (0XC00002F6) Fix

This error means Windows can't establish a secure connection because strong encryption is missing. U...

Intermediate 👁 35 Jun 7, 2026

0X80090021

Fix NTE_SYS_ERR (0X80090021) – BitLocker & TPM Error

This error pops up when BitLocker or Windows Hello can't talk to your TPM chip. Usually after a Wind...

Intermediate 👁 34 Jun 7, 2026

0X80093201

0x80093201 ASN1 CryptoAPI CRYPT_E_EXTENDED fix

This error pops up when Windows can't process a certificate with unknown extended extensions. The re...

Beginner 👁 29 Jun 6, 2026

0X0000053A

Fix ERROR_INVALID_SECURITY_DESCR (0x0000053A) Fast

Your security descriptor is busted. Usually from a corrupt file or bad permission copy. Here's how t...

Intermediate 👁 35 Jun 6, 2026

0XC00D109A

NS_E_WMPCORE_CODEC_NOT_TRUSTED (0XC00D109A) Fix

Windows Media Player refuses a codec because its digital signature is missing or revoked. Two main f...

Intermediate 👁 32 Jun 5, 2026

0X80310013

BitLocker FVE_E_FAILED_WRONG_FS 0X80310013 Fix

BitLocker won't encrypt because the drive uses the wrong file system. The fix is to convert to NTFS ...

Intermediate 👁 46 Jun 5, 2026

0XC00D28A0

NS_E_DRM_INVALID_CERTIFICATE (0xC00D28A0) in Silverlight DRM fix

This error hits when Silverlight's DRM certificate gets corrupted. The fix is clearing the DRM data ...

Beginner 👁 29 Jun 4, 2026

0X80090309

SEC_E_CANNOT_PACK (0x80090309) — fix for SSPI logon buffer marshal failure

This error means Windows can't pack security info during logon. Usually caused by corrupt Kerberos t...

Intermediate 👁 33 Jun 4, 2026

0X8000000C

Fix 0X8000000C Error: GUID Conflict in Windows Update & Activation

This error means Windows can't verify its activation or update GUID. Usually a corrupted license fil...

Intermediate 👁 31 Jun 3, 2026

0X0000177A

Fix ERROR_DIR_EFS_DISALLOWED (0X0000177A) Fast

This error means Windows won't encrypt a folder. Usually happens after a group policy change or when...

Intermediate 👁 28 Jun 2, 2026

0X0000078C

Fix ERROR_PER_USER_TRUST_QUOTA_EXCEEDED (0x78C) - Delegated Trust Quota

You're hitting the delegated trust creation quota for your user account. Fix: bump the quota via Gro...

Intermediate 👁 39 Jun 2, 2026

0X00002165

Fix ERROR_DS_NO_FPO_IN_UNIVERSAL_GROUPS (0x00002165) on Domain Controllers

This error pops up when you try to add a foreign security principal to a universal group in a mixed-...

Intermediate 👁 31 Jun 1, 2026

0X80090355

SEC_E_SMARTCARD_CERT_EXPIRED (0X80090355) Fix

Smart card cert expired? Here's the quick fix: update your user certificate via AD or use certlm.msc...

Intermediate 👁 32 Jun 1, 2026

0XC00D284D

NS_E_DRM_UNSUPPORTED_ALGORITHM (0XC00D284D) Fix

This error means Windows Media Player can't play DRM-protected content because the encryption algori...

Intermediate 👁 45 May 31, 2026

0XC000038B

Fix STATUS_REVOCATION_OFFLINE_C (0XC000038B) Error

This error means Windows can't verify a driver or app's certificate because the revocation server is...

Intermediate 👁 36 May 31, 2026

0XC000028D

Fix STATUS_NO_RECOVERY_POLICY (0XC000028D) on Windows 10/11

This error hits when BitLocker can't find a recovery policy on a domain-joined or Azure AD machine. ...

Intermediate 👁 44 May 31, 2026

0X00001782

Fix ERROR_CS_ENCRYPTION_UNSUPPORTED_SERVER (0X00001782)

Client-side encryption fails because the remote server's encryption claim is unreliable. This fix ta...

Intermediate 👁 40 May 31, 2026

0xc0000350

Fix 0xc0000350: Credential Guard blocks Kerberos after Hyper-V

Windows Credential Guard blocks Kerberos auth after enabling Hyper-V. Three fixes, from quick regist...

Intermediate 👁 44 May 31, 2026

0X000020A1

Fix ERROR_DS_SEC_DESC_TOO_SHORT (0x000020A1) Fast

This error means a security descriptor in Active Directory is corrupt or too short. The fix is to de...

Intermediate 👁 38 May 30, 2026

0XC0000401

STATUS_PER_USER_TRUST_QUOTA_EXCEEDED (0XC0000401) Quick Fix

Your user trust quota got hit — basically AD says you've created too many trusts. The fix is to bump...

Intermediate 👁 40 May 29, 2026

SMB Signing Not Required

Fix SMB Signing Not Required Vulnerability on Domain Controllers

This vulnerability means clients can talk to your DC without signing packets. The fix is a GPO tweak...

Intermediate 👁 43 May 29, 2026

0X000006FA

Fix ERROR_NO_TRUST_LSA_SECRET (0X000006FA) on Windows Domain

This error means your PC lost its trust relationship with the domain. I'll walk you through resettin...

Intermediate 👁 49 May 29, 2026