Database Errors

0XC00000E4

STATUS_INTERNAL_DB_CORRUPTION (0XC00000E4) Fix Guide

This error means Windows can't read a critical database file—often the registry or a system store. W...

Intermediate 👁 62 May 27, 2026

0X00001A2F

Fix ERROR_TRANSACTION_NOT_REQUESTED (0X00001A2F) Fast

This error means your app or query tried to use a transaction context that doesn't exist. Quick fix:...

Intermediate 👁 38 May 27, 2026

0XC00D0FF0

Fix NS_E_WMP_SAVEAS_READONLY (0XC00D0FF0) in WMP

This error pops up when Windows Media Player can't save a file because the destination folder or fil...

Beginner 👁 36 May 27, 2026

0X0004D010

Fix XACT_S_LASTRESOURCEMANAGER (0x0004D010) Fast

This error usually pops up during distributed transactions when a secondary resource manager is miss...

Intermediate 👁 33 May 27, 2026

ORA-12514

Fix Oracle ORA-12514 TNS listener error in 3 steps

TNS listener doesn't know the database service. Start with a quick listener check, then fix the conf...

Intermediate 👁 157 May 27, 2026

0XC0190061

Fix STATUS_TRANSACTION_NOT_ENLISTED (0XC0190061) in SQL Server

This error happens when a transaction tries to work with a resource manager that hasn't joined the t...

Intermediate 👁 38 May 27, 2026

0XC00D0FCC

NS_E_MPDB_GENERIC (0XC00D0FCC) – WMP Library Corruption Fix

Corrupted Windows Media Player library database causes this error. Clearing the database or removing...

Intermediate 👁 42 May 27, 2026

0X00000567

Fix 0x00000567: Local Security Authority Database Inconsistency

This error pops up when Windows can't read or write the local security database, often after a faile...

Intermediate 👁 58 May 27, 2026

0X8004D01E

XACT_E_REENLISTTIMEOUT: Fix the 0X8004D01E Timeout Error

This error means a resource manager took too long to reenlist during a distributed transaction. Star...

Intermediate 👁 50 May 26, 2026

0X80094006

Fix CERTSRV_E_SERVER_SUSPENDED (0x80094006) in 2 Steps

Active Directory Certificate Services stuck in suspended mode after a failed database restore. Kill ...

Intermediate 👁 56 May 26, 2026

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run

Fix 'Database connection failed' on MySQL 8.0

Quick answer: restart the MySQL service. If that fails, check the socket file and grant correct perm...

Beginner 👁 41 May 26, 2026

0X000008B3

Fix NERR_ACFNotLoaded 0X000008B3: Security database not started

This error means Windows can't reach the security database, usually because the SAM service or netwo...

Intermediate 👁 56 May 26, 2026

0X0004D003

Fix XACT_S_SOMENORETAIN (0x0004D003) Transaction Aborted

This SQL Server error means a transaction was aborted but resources aren't retained. Usually caused ...

Intermediate 👁 31 May 26, 2026

0X00001ABE

Fix ERROR_FLOATED_SECTION (0x1ABE): I/O on floated section object

I/O on a section object that's been floated after a transaction ends. Usually means the app held a f...

Intermediate 👁 39 May 26, 2026

0X8004D014

0X8004D014: XACT_E_NOIMPORTOBJECT Transaction Import Object Missing

This COM+ error means DTC can't find the transaction import object. Usually a dirty MSDTC configurat...

Intermediate 👁 37 May 26, 2026

0X80040151

REGDB_E_WRITEREGDB (0X80040151) — Fix Fast

That registry write error stops installations cold. Here's the fix that works 90% of the time, plus ...

Intermediate 👁 60 May 26, 2026

MongoDB Replica Set Election Hangs on Stale Oplog Entry

A stale oplog entry can block replica set elections. Here's how to find the offending entry and forc...

Intermediate 👁 39 May 26, 2026

0X00001AAE

Fix ERROR_TXF_ATTRIBUTE_CORRUPT (0x00001AAE) on NTFS

Transactional NTFS (TxF) attribute corruption, often from an interrupted transaction or disk errors....

Intermediate 👁 32 May 26, 2026

0XC0190036

Fix STATUS_FILE_IDENTITY_NOT_PERSISTENT (0XC0190036) in SQL Server

This error means SQL Server can't verify a file's identity after a restart. The fix is usually a dat...

Intermediate 👁 36 May 26, 2026

Cannot open database

Fix 'Cannot open database' on SQL Server 2019 – 3 real fixes

This error usually means SQL Server can't find or access the database. We'll check the database exis...

Intermediate 👁 34 May 26, 2026

0X00001A9F

Fix ERROR_HANDLE_NO_LONGER_VALID (0x1A9F) Transaction Handle

Your transaction handle got invalidated mid-operation. Reopen the handle inside the transaction, not...

Advanced 👁 39 May 26, 2026

0X80100016

SCARD_E_NOT_TRANSACTED 0X80100016 Fix That Actually Works

This error means your smart card reader's transaction state is out of whack. The quick fix is resett...

Intermediate 👁 72 May 26, 2026

0X00001A31

Fix ERROR_TRANSACTION_ALREADY_COMMITTED (0X00001A31)

This error means a transaction was already finalized when you tried to commit it again. Here's how t...

Intermediate 👁 35 May 26, 2026

Cannot open database requested by the login. The login failed.

Fix 'Cannot open database' error in SQL Server

You're seeing this because SQL Server can't find or access the database you're trying to connect to....

Intermediate 👁 47 May 26, 2026