Windows Errors

0XC00002F7

KDC reply has too many principals (0xC00002F7) fix

This error means Windows got multiple user names from the KDC when it expected exactly one. Here's h...

Intermediate 👁 22 May 28, 2026

0XC0000271

STATUS_VALIDATE_CONTINUE (0XC0000271) Fix: 3 Real Causes

The validation process needs to continue to the next step. It's not a crash—it's a breadcrumb. Here'...

Intermediate 👁 50 May 28, 2026

0XC00D0BC7

Fix NS_E_INCOMPATIBLE_VERSION (0XC00D0BC7) SDK Error

This Windows error means your media player or app needs a newer SDK to play specific DRM-protected c...

Beginner 👁 36 May 28, 2026

0XC0262007

0XC0262007: Denied desktop access in graphics present

ERROR_GRAPHICS_PRESENT_DENIED means Windows blocked a DirectX/OpenGL app from presenting to the desk...

Intermediate 👁 32 May 28, 2026

0X40000026

STATUS_ARBITRATION_UNHANDLED (0x40000026) – Fix in 3 Steps

Device resource arbitration fails when a child device can't resolve conflicts and punts to a parent ...

Intermediate 👁 29 May 28, 2026

0XC0220037

Fix 0xC0220037: Windows Filtering Platform callout notification failed

This WFP error means a firewall or security driver crashed during a notification event. The fix is t...

Intermediate 👁 56 May 28, 2026

0X00000026

0X00000026 (ERROR_HANDLE_EOF): Reached the end of the file

This error hits when a program or driver hits the end of a file it's reading, but hasn't gotten what...

Intermediate 👁 41 May 28, 2026

0X000036C9

SXS Duplicate TLBID 0x36C9 Fix That Actually Works

This error means Windows found two identical type library IDs in a side-by-side assembly. The fix is...

Intermediate 👁 28 May 28, 2026

0X80110434

COMADMIN_E_COMPFILE_NOREGISTRAR (0X80110434) Fix

You'll see this when a COM+ app package tries to install but can't find a needed DLL. The fix is man...

Intermediate 👁 35 May 28, 2026

0X00000241

0X00000241: Hash missing from system catalogs — fix guide

This error means Windows can't verify a driver or DLL's signature. Usually caused by unsigned driver...

Intermediate 👁 83 May 28, 2026

0XC00002DE

STATUS_INSUFFICIENT_POWER (0XC00002DE) Fix for USB & devices

Your PC can't power a device or port. Usually a USB power surge or bad driver. Fix it in Device Mana...

Intermediate 👁 42 May 28, 2026

0X00000863

Fix NERR_CfgParamNotFound (0X00000863) in Windows

This error means a network configuration parameter is missing or corrupted, usually from a bad regis...

Intermediate 👁 43 May 28, 2026

0X00000094

Fix ERROR_PATH_BUSY 0X00000094 – Simple to Advanced Steps

ERROR_PATH_BUSY means Windows can't access a path right now. Often caused by file locks, antivirus s...

Beginner 👁 26 May 28, 2026

0X000020D8

Fix ERROR_DS_CODE_INCONSISTENCY (0X000020D8) - Active Directory

A directory service internal error. Usually happens after a failed domain controller promotion or a ...

Intermediate 👁 24 May 28, 2026

0XC00000E2

Fix STATUS_OPLOCK_NOT_GRANTED (0XC00000E2) on Windows

This error means Windows denied an opportunistic lock request. It usually happens during file transf...

Intermediate 👁 30 May 28, 2026

0X000020B6

AD Cross-Reference 0X000020B6: Fix Conflict

This error hits when you try to add a cross-reference in Active Directory that already exists. Usual...

Intermediate 👁 27 May 28, 2026

0XC0000434

STATUS_PTE_CHANGED (0XC0000434) – Memory or Driver Conflict

This BSOD error means a Page Table Entry (PTE) was modified unexpectedly. It's almost always bad mem...

Intermediate 👁 36 May 28, 2026

0X00000578

0X00000578: Invalid Window Handle Fix

That error means a program tried to talk to a window that doesn't exist anymore. Usually a crash or ...

Intermediate 👁 80 May 28, 2026

0XC0262306

0xC0262306: Your external monitor just stopped working

That error means your GPU and monitor can't agree on a display mode. Usually a bad cable or a wonky ...

Intermediate 👁 27 May 28, 2026

0X00000542

Fix ERROR_BAD_IMPERSONATION_LEVEL 0X00000542 Fast

This error means a program tried to impersonate a user but didn't have the right permission level. I...

Intermediate 👁 25 May 28, 2026

0XC0262110

Fix 0XC0262110: GPU allocation can't be used from current segment

This error means your graphics driver or video memory is corrupted. I'll show you how to clear it fa...

Intermediate 👁 24 May 28, 2026

0XC0000152

0XC0000152: Account Not in Group – Fix Fast

This error means Windows can't find the account in the group you're trying to add it to. Usually it'...

Intermediate 👁 52 May 28, 2026

0X00000A50

Fix 0X00000A50: Boot name or vendor ID already in use by another boot block record

This Remote Boot error trips up anyone setting up RPL clients on older Windows or LAN Manager networ...

Intermediate 👁 23 May 28, 2026

0X80290101

Fix TPMAPI_E_NOT_ENOUGH_DATA (0X80290101) – 3 Common Causes

You get this when Windows sends a TPM command buffer that's too short. Usually a driver mismatch, co...

Intermediate 👁 21 May 28, 2026