72 known error codes for this model

0x204 Moderate

Remote Desktop client could not establish a session to target host.

0x80004005 Moderate

Unspecified Windows error from permission, update, or component failures.

0x8000FFFF Call a Pro

Catastrophic failure. A severe and unspecified system error indicating significant corruption in Windows components, the update engine, or the system store.

0x80010135 Easy Fix

Path too long. A file path exceeds the Windows MAX_PATH limit of 260 characters, preventing the update from extracting or accessing required files.

0x80070002 Moderate

The system cannot find the file specified. A required update file, manifest, or system component is missing from the expected location.

0x80070005 Moderate

Access denied. Windows Update does not have the required permissions to access files, registry keys, or services needed for the update process.

0x8007000D Moderate

Update data is invalid or corrupted.

0x80070035 Moderate

Network path not found while accessing SMB shares.

0x80070057 Moderate

The parameter is incorrect. This error occurs when Windows encounters an invalid parameter during update installation, disk formatting, or partition operations.

0x8007007F Moderate

A required system procedure could not be found, often during update or runtime initialization.

0x80070091 Easy Fix

The directory is not empty. Windows Update cannot remove or replace a directory because it still contains files, often from a failed previous update operation.

0x80070103 Easy Fix

A driver update is already installed or is not compatible with the current hardware. Windows Update attempted to install a driver that is identical to or older than the one already…

0x8007016A Easy Fix

The cloud file provider is not running. This typically occurs when OneDrive's sync engine stops functioning or fails to start properly.

0x8007017C Easy Fix

The cloud sync operation was not completed before the timeout period. A cloud file operation (typically OneDrive) failed to finish within the allotted time.

0x80070183 Easy Fix

The network resource or device is no longer available. The connection to the Windows Update server or network share was lost during the update operation.

0x80070184 Easy Fix

The transport connection was aborted. A network operation timed out while downloading update files or communicating with Windows Update servers.

0x80070194 Easy Fix

The cloud file provider exited unexpectedly. OneDrive's sync process terminated while Windows was attempting to access cloud-synced files.

0x800701AA Easy Fix

Insufficient system resources exist to complete the requested service. The system ran out of disk space, memory, or other resources needed to process the update.

0x800701B1 Call a Pro

A device attached to the system is not functioning. The storage device (HDD, SSD, or USB drive) is failing, disconnected, or experiencing I/O errors during the update process.

0x80070306 Moderate

An installation error occurred during the update process. The update package failed to install a required component.

0x8007045D Call a Pro

An I/O device error has occurred. The storage device encountered a read or write error while processing update files.

0x80070490 Moderate

Element not found. The Component Based Servicing (CBS) system cannot locate a required component or manifest, preventing Windows Update from processing the update.

0x80070570 Moderate

The file or directory is corrupted and unreadable. Windows cannot read required update files due to file system corruption or failing storage media.

0x80070643 Moderate

.NET Framework update installation failed, or Windows Defender definition update issue. The update installer (msiexec.exe) returned an error during package installation.

0x80070780 Moderate

The file cannot be accessed by the system. Windows cannot read or write to a required file due to permissions, encryption, or file system corruption.

0x80072EFE Moderate

Connection with Windows Update servers was interrupted.

0x80073701 Moderate

The referenced assembly could not be found. A required component assembly or its manifest is missing from the WinSxS store, preventing the update from being applied.

0x80073712 Moderate

A component store has been corrupted. The WinSxS (Windows Side-by-Side) component store contains damaged manifests or missing component files required for servicing.

0x800F0805 Moderate

Windows servicing operation failed due to missing or invalid package metadata.

0x800F081F Moderate

Source files for .NET Framework 3.5 or other optional Windows features could not be found. The Component Based Servicing (CBS) system cannot locate the required installation source…

0x800F0983 Moderate

Windows Update component error during a feature update installation. The servicing stack failed to process the update package during a major version upgrade.

0x800F0991 Moderate

Windows Update component error preventing updates from installing correctly. The servicing stack encountered an issue processing the update package.

0x80248007 Moderate

A download manager error occurred because update metadata is invalid or corrupted. The Windows Update client cannot parse the update information received from the server.

0xC0000001 Call a Pro

An unsuccessful operation has occurred. This is a general boot failure error indicating that the system cannot start due to a missing or corrupted file, driver, or registry hive.

0xC000000E Call a Pro

The boot configuration data for your PC is missing or contains errors. The boot manager cannot locate the Windows boot loader or the referenced boot device.

0xC0000098 Call a Pro

Boot Configuration Data file does not contain required information.

0xC00000E Call a Pro

Windows boot configuration or required device path cannot be found during startup.

0xC00000F Call a Pro

Boot selection failed because required device is inaccessible.

0xC0000185 Call a Pro

A boot failure occurred due to an I/O error. The system cannot read essential boot files from the storage device.

0xC0000225 Call a Pro

Required boot device or system file is inaccessible during startup.

0xC004F213 Moderate

Windows activation failed because no valid product key/license was found.

0xC1900101 Moderate

Installation rollback during a Windows upgrade. The upgrade process encountered a driver compatibility error during the SAFE_OS phase and rolled back to the previous version.

147-0 Moderate

Microsoft 365/Azure sign-in transaction failed due to policy or token state conflict.

500121 Moderate

Microsoft sign-in blocked due to unmet authentication requirements (commonly MFA/conditional access).

53003 Moderate

Azure AD/Entra sign-in blocked by Conditional Access policy.

A Disk Read Error Occurred Moderate

The BIOS successfully found the boot device but encountered a read error while loading the operating system — the disk returned corrupted or no data when trying to read the boot se…

CLOCK_WATCHDOG_TIMEOUT Call a Pro

A processor core did not respond to an interrupt within the expected time — one CPU core stopped responding while other cores were still functioning, indicating a potential hardwar…

CMOS Checksum Error Easy Fix

The BIOS settings stored in CMOS memory are corrupted or lost — the checksum verification of stored BIOS settings does not match, usually because the CMOS battery has died

CPU Fan Error Easy Fix

BIOS/UEFI detected that the CPU fan is not spinning or is spinning below the minimum RPM threshold — the system may shut down to prevent CPU overheating

CPU Over Temperature Error Moderate

The CPU has reached a dangerously high temperature and the system has halted or throttled to prevent permanent damage — the BIOS thermal protection has been triggered

CRITICAL_PROCESS_DIED Moderate

A Windows system process that is essential for operation unexpectedly terminated — the OS cannot continue because a critical service like csrss.exe, wininit.exe, or smss.exe has st…

DPC_WATCHDOG_VIOLATION Moderate

A Deferred Procedure Call (DPC) routine ran for longer than the watchdog timer allows — a driver or system component is stuck in a long-running operation that blocks other system f…

DRIVER_IRQL_NOT_LESS_OR_EQUAL Moderate

A driver attempted to access an invalid memory address while running at a raised IRQL — similar to IRQL_NOT_LESS_OR_EQUAL but specifically identifies a driver as the culprit

Disk Boot Failure Moderate

The BIOS found a boot device but failed to read a valid operating system from it — the boot sector or boot files on the disk are damaged or missing

Error 0xc000000f Moderate

The Boot Configuration Data (BCD) file is missing, corrupted, or contains invalid entries — Windows cannot determine which partition to boot from

HYPERVISOR_ERROR Moderate

The Windows Hyper-V hypervisor encountered a fatal error and cannot continue — this affects virtualization features including WSL2, Docker, Android emulators, and virtual machines

IRQL_NOT_LESS_OR_EQUAL Moderate

A kernel-mode driver or process attempted to access a memory address at an invalid IRQL (Interrupt Request Level) — a driver tried to access pageable memory at a raised interrupt l…

KERNEL_DATA_INPAGE_ERROR Moderate

Windows could not read a required page of kernel data from the paging file or storage device — indicating a disk read failure or memory error that prevented the OS from loading cri…

KMODE_EXCEPTION_NOT_HANDLED Moderate

A kernel-mode program generated an exception that the error handler did not catch — a driver or system-level process caused an unrecoverable fault in kernel memory space

MEMORY_MANAGEMENT Moderate

Windows detected a severe memory management error — a critical fault occurred in the system's memory allocation, page table, or virtual memory subsystem

NTLDR is Missing Moderate

Windows XP/Vista-era boot error where the NT Loader (NTLDR) file cannot be found — on modern Windows this manifests as BOOTMGR is Missing. The system cannot find the essential file…

No Boot Device Found Moderate

The BIOS/UEFI firmware scanned all connected storage devices and found no valid bootable partition — similar to 'Reboot and Select Proper Boot Device' but typically indicates the d…

PAGE_FAULT_IN_NONPAGED_AREA Moderate

Windows referenced a page of memory that should have been resident in physical RAM (non-paged pool) but was not found — a critical memory corruption or hardware error

Reboot and Select Proper Boot Device Moderate

The BIOS/UEFI could not find a bootable operating system on any connected storage device — the system does not know where to load Windows from

SYSTEM_SERVICE_EXCEPTION Moderate

An exception occurred in a system service routine — a Windows system process or driver generated an unhandled error while executing privileged code

SYSTEM_THREAD_EXCEPTION_NOT_HANDLED Moderate

A system thread generated an exception that the error handler did not catch — typically caused by a driver that crashed during a routine operation

System Error 1231 Moderate

Network location cannot be reached — the device or resource is on the network but Windows cannot establish a connection to it at the transport layer

System Error 5 Easy Fix

Access Denied — the command or operation you are trying to run requires administrator privileges that your current user account or Command Prompt session does not have

System Error 53 Moderate

Network path not found — Windows cannot locate the specified computer or shared resource on the network

UNEXPECTED_STORE_EXCEPTION Moderate

The Windows Store component or storage subsystem encountered an unexpected exception — commonly related to SSD or HDD issues, corrupted system files, or antivirus interference

VIDEO_SCHEDULER_INTERNAL_ERROR Moderate

The GPU's video scheduler detected a fatal violation — the graphics driver or GPU hardware failed to respond within the expected time or produced an invalid operation

WHEA_UNCORRECTABLE_ERROR Moderate

Windows Hardware Error Architecture detected a fatal, uncorrectable hardware error — the CPU, RAM, or another hardware component reported a failure that Windows cannot recover from