Windows Errors

0XC00D1174

Fix NS_E_DVD_INVALID_TITLE_CHAPTER (0XC00D1174) on Windows

This DVD error pops up when Windows Media Center or Media Player can't find the title/chapter you as...

Beginner 👁 21 Sep 1, 2026

0X00003626

Fix ERROR_IPSEC_IKE_UNKNOWN_DOI 0x3626 in Windows

IPsec IKE negotiation fails because your VPN or firewall sends an unknown DOI. Usually a registry tw...

Intermediate 👁 26 Sep 1, 2026

0XC00D00D9

NS_E_INVALID_INDEX2 (0XC00D00D9): Fix Invalid Index Error

Windows Media Player or streaming app hits invalid index. Reset library and clear cache—works most t...

Beginner 👁 36 Sep 1, 2026

0XC00D275C

NS_E_DRM_BUFFER_TOO_SMALL Fix: Windows Media Player Error 0XC00D275C

Error 0XC00D275C hits when Windows Media Player or a DRM-protected file can't write to a buffer. Her...

Intermediate 👁 29 Aug 31, 2026

0XC0262510

Fix 0XC0262510 Theater Mode Error in Windows

Theater mode blocks video output. Disable it via registry or restart the graphics driver. Works on W...

Intermediate 👁 20 Aug 31, 2026

0X80094004

CERTSRV_E_PROPERTY_EMPTY 0X80094004: The Fix That Works

Certificate Services hits this when a property is missing. Usually the certificate template or the r...

Intermediate 👁 22 Aug 31, 2026

0x80070057 (and others)

Fix 'Unexpected error keeping you from copying the file' on Win 10/11

This error usually means a glitchy Explorer cache or a corrupted file attribute. I'll show you the q...

Beginner 👁 20 Aug 31, 2026

0X00000702

Fix 0x702 Redirector Has Open Handles When Unloading

This error pops up when you try to unload the redirector (RDR) but files are still open on network s...

Intermediate 👁 34 Aug 31, 2026

0X000036B7

Fix 0x000036B7: Side-by-Side Key Missing in Windows

Windows can't find a needed lookup key in its activation context. Usually caused by broken Visual C+...

Intermediate 👁 24 Aug 31, 2026

0X00000538

Fix ERROR_INVALID_ACL (0x538) in Windows: Step-by-Step

This error pops up when Windows hits a broken ACL. We'll fix it by resetting permissions or rebuildi...

Intermediate 👁 21 Aug 31, 2026

0X000020A7

Fix ERROR_DS_CLASS_MUST_BE_CONCRETE (0X000020A7) in AD

This AD error appears when you try to create an object from an abstract class. Fix it by using a con...

Intermediate 👁 16 Aug 31, 2026

0X0000208E

Active Directory: Fix ERROR_DS_ALIASED_OBJ_MISSING (0x208E)

Active Directory error when a group alias points to a deleted user or group. Triggered during replic...

Intermediate 👁 18 Aug 31, 2026

0XC00D11B9

Fix NS_E_WMP_NEED_UPGRADE 0XC00D11B9 on Windows

Old codec or WMP version can't handle the file. Update Windows Media Player or install a codec pack....

Intermediate 👁 30 Aug 31, 2026

0XC0040036

Fix STATUS_PNP_TRANSLATION_FAILED (0XC0040036) in 10 Minutes

This error stops devices cold. I'll show you the quick registry fix that works 90% of the time, then...

Intermediate 👁 21 Aug 31, 2026

0XC00D32C9

NS_E_USE_FILE_SOURCE (0xC00D32C9): Fix Windows Media Player Errors

Windows Media Player throws NS_E_USE_FILE_SOURCE when it can't stream media. This fix forces WMP to ...

Beginner 👁 19 Aug 31, 2026

0X00002073

Fix 0x2073: AD RDN Doesn't Match Schema Object

Active Directory throws 0x2073 when you try to add an object whose Relative Distinguished Name doesn...

Intermediate 👁 20 Aug 31, 2026

0X000009C6

Fix 0X000009C6: NERR_BadDosFunction on Old DOS Apps

Old DOS programs hit error 0X000009C6 when Windows blocks their weird file calls. Here's how to get ...

Intermediate 👁 23 Aug 31, 2026

0XC00D1B84

NS_E_ARCHIVE_SAME_AS_INPUT: Fix Windows Media Center Archive Error

This error happens when you try to archive a show to a file with the same name as the source. Rename...

Beginner 👁 17 Aug 31, 2026

0x800F0922

Critical Error: Start Menu and Cortana Aren't Working — Fix Now

Windows 10 Start menu and Cortana stop responding after a bad update. Most times it's a corrupt comp...

Intermediate 👁 53 Aug 30, 2026

0X80280400

TPM_E_COMMAND_BLOCKED 0x80280400 Fix: Clear TPM or Update

TPM command blocked? Usually a firmware bug or leftover state. Try resetting the TPM in Windows, the...

Intermediate 👁 27 Aug 30, 2026

0XC000001E

Fix STATUS_INVALID_LOCK_SEQUENCE (0xC000001E) on Windows

Lock sequence error usually means a driver or app is corrupt. We'll run SFC and DISM, check memory, ...

Intermediate 👁 24 Aug 30, 2026

0X000004D8

Fix ERROR_LOGIN_WKSTA_RESTRICTION (0x4D8) Fast

The account isn't allowed to log on from this PC. Usually a workstation restriction in AD or Local S...

Intermediate 👁 22 Aug 30, 2026

0XC00D1B9A

Fix NS_E_MISSING_SOURCE_INDEX (0XC00D1B9A) Stream Error

This Windows Media Foundation error appears when a source index is missing in the output stream. Her...

Intermediate 👁 17 Aug 30, 2026

0XC00000A6

Fix STATUS_CANT_OPEN_ANONYMOUS (0xC00000A6) on Windows

This error appears when Windows can't create an anonymous token, often due to broken permissions or ...

Intermediate 👁 14 Aug 30, 2026