Cybersecurity & Malware

MFA Fatigue Attacks: Stop the Approval Bombing

Attackers spam MFA push requests until you cave. Here's how to spot it and shut it down fast....

Intermediate 👁 79 May 27, 2026

0XC000015D

Fix STATUS_NT_CROSS_ENCRYPTION_REQUIRED (0XC000015D) Error

This error pops up when Windows can't decrypt a file due to encryption mismatches. You'll see it try...

Intermediate 👁 169 May 27, 2026

0X8001011A

Fix 0x8001011A: RPC Security Package Error

This error usually means COM can't find a valid security package. The fix is editing the registry to...

Intermediate 👁 105 May 27, 2026

Windows Defender Firewall has blocked some features of this app

VPN app blocked by Windows Defender Firewall – quick fix

Your VPN's features get blocked because Windows Firewall sees it as a threat. The real fix is adding...

Beginner 👁 367 May 27, 2026

0X8001012D

Fix CO_E_INVALIDSID (0X8001012D) in Windows 10/11

This error means a security identifier (SID) is corrupt or mismatched. I'll walk you through three f...

Intermediate 👁 162 May 27, 2026

0XC00002DF

0XC00002DF: SAM needs boot key password fix

This error pops up when Windows can't unlock the SAM database at boot. Usually after a sysprep or di...

Intermediate 👁 96 May 27, 2026

0X80090351

Smart card certificate revoked (0x80090351) fix

This error pops up when Windows can't verify your smart card's certificate because it's been revoked...

Beginner 👁 59 May 26, 2026

0X000004EF

Fix ERROR_PKINIT_FAILURE (0X000004EF) Fast

Kerberos PKINIT authentication failed. Usually happens after a Windows update or when your computer'...

Intermediate 👁 63 May 26, 2026

0XC00D28AE

NS_E_DRM_CERTIFICATE_SECURITY_LEVEL_INADEQUATE Fix

Your DRM cert isn't trusted enough for the action. Usually a Windows Media Player or Silverlight iss...

Intermediate 👁 63 May 26, 2026

Trojan:Win32/Occamy.C

Stop Trojan:Win32/Occamy.C False Positive Blocking Your Apps

Windows Defender falsely flags safe programs as Trojan:Win32/Occamy.C. This guide shows you how to s...

Beginner 👁 59 May 26, 2026

0X80091009

CRYPT_E_ALREADY_DECRYPTED (0X80091009) Fix: 3 Quick Solutions

You're seeing CRYPT_E_ALREADY_DECRYPTED when something tries to decrypt data that's already decrypte...

Intermediate 👁 87 May 26, 2026

0X8009030A

SEC_E_QOP_NOT_SUPPORTED (0x8009030A) Fix: Broken Kerberos or NTLM

This happens when Windows can't negotiate encryption between machines. Usually a Kerberos ticket mis...

Intermediate 👁 75 May 26, 2026

0X80092007

CRYPT_E_SELF_SIGNED (0x80092007) - Quick Fixes From 14 Years in IT

Windows can't trust a self-signed cert. Usually caused by an expired root cert or a mismatched syste...

Intermediate 👁 114 May 26, 2026

0x8007054E

Fix Generic Host Process Error 0x8007054E from Malware

That 'Generic Host Process for Win32 Services' error with code 0x8007054E is usually malware hiding ...

Intermediate 👁 83 May 26, 2026

Security Center Service

Fix 'Security Center Service Can't Start' on Windows 10/11

Windows Security Center service won't start after a malware infection or manual tweak. Here's the re...

Intermediate 👁 601 May 26, 2026

0X8009400C

CERTSRV_E_BAD_REQUEST_KEY_ARCHIVAL (0X8009400C) Fix

This error means the certificate request has a messed-up key archival blob. Usually it's a template ...

Intermediate 👁 53 May 26, 2026

0X00001783

Fix 0X00001783: File encrypted, open in client-side encryption mode

This error pops up when trying to open an encrypted file on a server without client-side encryption ...

Intermediate 👁 58 May 26, 2026

0X0000214E

Fixing ERROR_DS_CANT_RETRIEVE_SD (0x214e) in Active Directory

Active Directory can't read a security descriptor on an object. Usually a permissions or replication...

Intermediate 👁 63 May 26, 2026

0X80094011

CERTSRV_E_ENROLL_DENIED (0X80094011) — CA permissions blocking cert enrollment

Your user account doesn't have enroll permission on the CA. Fix it by checking your cert template or...

Intermediate 👁 143 May 26, 2026

0X00002142

ERROR_DS_NO_NEST_GLOBALGROUP_IN_MIXEDDOMAIN (0X00002142) Fix

You can't nest global security groups in a mixed domain. The fix is to change the domain functional ...

Intermediate 👁 46 May 26, 2026

Windows SmartScreen prevented an unrecognized app from starting

SmartScreen blocks safe downloads: how to force it through

SmartScreen blocks downloads it doesn't recognize, even safe ones. Here's how to override it without...

Beginner 👁 319 May 26, 2026

0X80090342

Fixing SEC_E_KDC_UNKNOWN_ETYPE (0x80090342) in Kerberos auth

This Kerberos error means the KDC doesn't support the encryption type your client requested. It's al...

Intermediate 👁 105 May 26, 2026

0X0000361D

Fix 0x0000361D: IPSec IKE failsSPInit SSPI dispatch error

This error hits when Windows can't dispatch security functions during IKE negotiation — typically af...

Intermediate 👁 59 May 26, 2026

0X80096001

0X80096001 TRUST_E_SYSTEM_ERROR: Fixing Certificate Trust in Windows

Windows throws this error when signing code or installing updates because the certificate's timestam...

Intermediate 👁 97 May 26, 2026