Windows Errors

Blue screens, error codes, system crashes and Windows update issues.

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0X00000520

0x00000520: A specified logon session does not exist

Your system says a logon session is gone. This usually happens with old cached credentials or a bust...

Intermediate 10 views May 27, 2026
0X00040172

CACHE_S_SOMECACHES_NOTUPDATED (0X00040172) Fix

This error pops up when Windows update or app install leaves cached files behind. It's annoying but ...

Intermediate 7 views May 27, 2026
0X00003AA9

Fix ERROR_EVT_FILTER_INVTEST (0x00003AA9) in Event Viewer

This error means your Event Viewer filter has an invalid test. The fix is to reset the custom filter...

Intermediate 8 views May 27, 2026
0X80280048

TPM_E_MAXNVWRITES (0X80280048) Fix – Stop the NV Write Lockout

Your TPM hit its write limit. Reset the TPM in BIOS or clear it in Windows. Quick fix, no reformat n...

Intermediate 9 views May 27, 2026
0XC0150017

STATUS_SXS_INVALID_IDENTITY_ATTRIBUTE_NAME (0XC0150017) Fix

This error hits when Windows can't load a side-by-side assembly because an XML attribute name is gar...

Intermediate 10 views May 27, 2026
0XC0262100

Fix 0xC0262100 Graphics No Video Memory Error

This error means Windows ran out of dedicated VRAM. Usually happens in games or GPU-heavy apps when ...

Beginner 7 views May 27, 2026
0X00000547

Fix ERROR_CANT_ACCESS_DOMAIN_INFO (0X00000547) on Windows

Windows can't read domain info from the local machine. Usually a busted registry or broken trust rel...

Intermediate 11 views May 27, 2026
0XC000006F

STATUS_INVALID_LOGON_HOURS (0XC000006F) – Time Restrictions Blocking Login

Your login is blocked by a domain policy that limits when your account can be used. This usually mea...

Intermediate 10 views May 27, 2026
0x80070002

Fix Windows Error 0x80070002 – Missing Files

Error 0x80070002 means Windows Update can't find a needed file. It's usually a corrupted cache or ba...

Beginner 14 views May 27, 2026
0X8028003D

Fix TPM_E_BAD_LOCALITY (0x8028003D) in Windows 11/10

This TPM error means your system's locality setting is wrong for the operation. It typically happens...

Intermediate 9 views May 27, 2026
0XC00D004A

NS_E_LOG_FILE_SIZE (0XC00D004A): Clear the Held Log File

This Windows Media Center error means a log file hit its size cap. The fix is to delete or rename th...

Beginner 10 views May 27, 2026
0X800401D4

CloseClipboard Failed 0X800401D4: Why It Sticks and How to Fix It

Clipboard won't close? The CLIPBRD_E_CANT_CLOSE error means another app has it locked. Here's how to...

Beginner 8 views May 27, 2026
0X000000BF

Fix ERROR_INVALID_EXE_SIGNATURE (0X000000BF) on Windows 10/11

This error means Windows blocked an executable due to a corrupt or missing signature. We'll cover th...

Intermediate 13 views May 27, 2026
0XC023001E

STATUS_NDIS_RESOURCE_CONFLICT Fix: NIC Hardware Conflict

Your network card can't grab a resource because another device already has it. Usually a PCI slot or...

Intermediate 8 views May 27, 2026
0X000032E0

Fix WARNING_IPSEC_MM_POLICY_PRUNED (0x000032e0) on Windows

IPSec main mode policy got added but some offers got dropped. Usually means a mismatch between what ...

Intermediate 8 views May 27, 2026
0XC000022D

STATUS_RETRY (0XC000022D) — SMB network glitch fix

This error shows up when Windows can't finish a file operation over the network, usually during a co...

Intermediate 13 views May 27, 2026
0XC00D0FB4

NS_E_WMPXML_NOERROR (0xC00D0FB4): Fix XML Parser Error in Windows Media Player

This error means Windows Media Player's XML parser can't find an error—but something's broken. Usual...

Intermediate 11 views May 27, 2026
0X00002097

Fix ERROR_DS_CLASS_NOT_DSA (0X00002097) in Active Directory

This error pops up when you try to add an object to a directory partition, but that object isn't a D...

Intermediate 8 views May 27, 2026
0X80097003

Fix MSSIPOTF_E_NOHEADTABLE (0X80097003) error in Windows

This error pops up when you install or open a font file with a missing head table. It usually happen...

Beginner 7 views May 27, 2026
0XC00000ED

Fix 0XC00000ED: The action is restricted for logon processes only

This error means a non-logon process tried to do something only the logon process can. Usually happe...

Intermediate 9 views May 27, 2026
0X00000067

Fix 0X00000067: Semaphore Cannot Be Set Again

This error means a program tried to use more semaphores than Windows allows. Usually a driver or app...

Intermediate 18 views May 27, 2026
0XC00D0FC0

NS_E_WMP_MF_CODE_EXPIRED (0XC00D0FC0) — Media Foundation Fix

This error means a Media Foundation component Windows Media Player relies on is outdated or corrupte...

Intermediate 8 views May 27, 2026
0XC00002D2

STATUS_PNP_REBOOT_REQUIRED (0XC00002D2) fix that actually works

Your device driver needs a reboot to work. Windows stops the device cold until you restart. Here's h...

Intermediate 16 views May 27, 2026
0X80040209

Fix EVENT_E_TOO_MANY_METHODS (0x80040209) on Windows

This COM error pops up when an interface has too many methods for event firing. The fix is usually a...

Intermediate 8 views May 27, 2026