TechClassy

TechClassy diagnostic route

BSOD

Identify the confirmed bug-check family, capture recurrence context, and collect usable crash evidence without guessing a root cause.

Use the exact code, final message, Stop Code, driver filename, or final SFC/DISM line — not a description from memory.

Runs in this browser — no upload, no account, nothing stored

Ctrl/⌘ + Enter

Real cases
Resume a saved session — paste a Resume Capsule

The capsule is validated and restored only in this browser. An invalid capsule changes nothing.

Complete, source-reviewed pages

Browse the supported diagnostic records

MEMORY_MANAGEMENT Severe memory-management errorWindows stopped because the kernel detected a severe inconsistency in memory management. IRQL_NOT_LESS_OR_EQUAL Invalid kernel memory access at a raised IRQLKernel-mode code attempted an invalid or pageable memory access while running at an interrupt level where that access was not allowed. DRIVER_POWER_STATE_FAILURE Driver did not complete a power-state transitionWindows stopped after a driver failed to complete a required power-management request in time. DPC_WATCHDOG_VIOLATION A high-priority kernel task exceeded its time limitWindows detected that a deferred procedure call or interrupt routine ran too long or the system spent too long at an elevated interrupt level. CRITICAL_PROCESS_DIED A critical Windows process terminatedA process required for Windows to continue safely terminated or became corrupted. PAGE_FAULT_IN_NONPAGED_AREA Invalid reference to nonpaged memoryKernel-mode code referenced invalid memory that should have remained resident and valid. INACCESSIBLE_BOOT_DEVICE Windows lost access to the boot volumeWindows could not access the system partition during startup. KERNEL_SECURITY_CHECK_FAILURE Critical kernel data structure corruptionThe kernel detected corruption of a critical internal data structure and stopped to protect system integrity. Windows memory dump Check whether useful crash evidence already existsA small memory dump can preserve bug-check parameters and a limited view of the crash state. It can support diagnosis but does not automatically prove a root cause.

After the first check

Read the evidence this route produces

Paste a bounded msinfo32 or DxDiag text report and extract the Windows build, system model, firmware mode, memory, DirectX, display-driver, and explicitly reported problem-device facts without uploading the report.

Windows System Information Snapshot ReaderNo upload · bounded excerpt · source-governed interpretation

Local-first utility

Privacy

The diagnostic parser, evidence readers, verification loop, and Evidence Pack run in your browser. TechClassy does not intentionally store the raw text you paste, Event Viewer or update-log excerpts, full command output, usernames, local file paths, dump files, device serial numbers, observations, parsed summaries, or generated Evidence Packs.

No advertising, analytics, session replay, account system, upload surface, or third-party diagnostic script is loaded in this release. Standard hosting security logs may contain request metadata such as time, requested path, and network information; diagnostic and evidence text is not sent as a URL parameter or API body by the tool.

Use boundary

TechClassy organizes evidence and reviewed next checks. It is not a substitute for Microsoft, an OEM, an employer's IT team, or a qualified repair professional. Results distinguish confirmed facts from possible causes and do not guarantee a repair.

Back up important data before making system changes. Stop when an action requires credentials, firmware changes, disk work, account recovery, or a command whose prerequisites you cannot verify.

Independent operation

This is a newly researched, independently operated diagnostic product. It does not claim to be the prior TechClassy editorial team or a continuation of prior authorship.

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