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claudetools/clients/universal-minerals/session-logs/2026-06/2026-06-10-howard-cyndyoffice-freeze-diagnosis.md
Howard Enos bd5e977b6e sync: auto-sync from HOWARD-HOME at 2026-06-10 13:15:14 
Author: Howard Enos
Machine: HOWARD-HOME
Timestamp: 2026-06-10 13:15:14
2026-06-10 13:15:27 -07:00

10 KiB
Raw Blame History

CyndyOffice Intermittent Freeze/Lockup Diagnosis — Syncro #32397

User

  • User: Howard Enos (howard)
  • Machine: Howard-Home
  • Role: tech

Session Summary

Investigated the CyndyOffice workstation (Universal Minerals International Inc, Syncro ticket #32397, "Onsite - Computer intermittently freezing and shutting down") via the GuruRMM agent fleet. The presenting symptom was the machine locking up hard and requiring a forced power-off to recover. The first finding corrected a premise: despite the RMM site name "Howard-VM", CyndyOffice is a physical HP Pavilion Desktop TP01-2xxx (AMD, 16 logical CPUs, single 16 GB Kingston DIMM, 1 TB WD SN530 NVMe, Win 11 Home build 26200), not a VM.

A multi-pass read-only diagnostic established the lockup signature: ~20 hard lockups over six weeks, each a Kernel-Power 41 event with bugcheck code 0 and no crash dump, paired with a 6008 dirty-shutdown. Crash dumps were confirmed enabled (CrashDumpEnabled=3, AutoReboot=1), so the absence of any minidump/MEMORY.DMP and any WHEA-Logger hardware error is meaningful — these are true hardware/firmware freezes, not Windows BSODs or software crashes. The event log goes silent at each freeze and resumes only at the next boot. Storage was ruled out (SSD healthy, 0% wear, 37C), as were sleep/wake (no auto-sleep on AC), AV conflict (only Defender registered), and idle thermal (~30C).

Remediation applied: Howard had already updated the BIOS via HP Support Assistant, confirmed in the diagnostic as F.36 (Oct 2024) -> F.38 (Jul 2025). Fast Startup was disabled (HiberbootEnabled 1->0). A Windows Memory Diagnostic was armed via bcdedit /bootsequence {memdiag} and run on reboot — result: PASSED, no errors (Standard 2-pass; an extended MemTest86 USB run remains available if exhaustive certainty is wanted). An orphaned mbamchameleon (Malwarebytes leftover) driver service was deleted via sc.exe, clearing boot Event 7000. The remaining boot error (TPM-WMI 1796, Secure Boot SBAT update 0x800700c1) was identified as benign Microsoft noise and left alone.

Separately, QuickBooksMessaging.exe was found crash-looping (~15/min; .NET System.ObjectDisposedException on NotifyIcon system-tray update), unrelated to the freezes. QuickBooks is Enterprise 22.0 (2022 edition, past Intuit support). Howard ran the QuickBooks Tool Hub repair; after repair + reboot no new messaging crashes were logged (to be fully confirmed once the company file is in active use). The Syncro ticket was updated with three public comments (findings, memtest passed, QB repair + contingency plan). A contingency was documented: if freezing recurs after the BIOS/Fast Startup fixes, the next step is a full hardware diagnostic (extended memory + drive/PSU testing) plus a backup and clean Windows reinstall, requiring ~1-2 days of machine downtime. PSU is the prime remaining hardware suspect.

Key Decisions

  • Treated the absence of crash dumps + WHEA errors (with dumps confirmed enabled) as positive evidence of a hardware/firmware hang rather than a software/driver BSOD — drove the hardware-first diagnostic path.
  • Re-resolved the agent UUID live on every dispatch: this agent re-enrolls with a new UUID on reboot, and an early queued command was dropped ("Command not found") when the UUID changed.
  • Chose Windows Memory Diagnostic (remote, bcdedit-armed) over MemTest86 for the first RAM pass since MemTest86 requires physical USB boot media; flagged MemTest86 as the exhaustive follow-up if Standard passed but freezes continued.
  • Recommended a monitoring window as the primary path after BIOS + Fast Startup fixes (freezes were every 1-3 days), rather than immediately swapping hardware.
  • Posted ticket notes public (per Howard) with do_not_email=true — visible in the customer portal without emailing dense technical detail.
  • Deleted only the confirmed-orphaned mbamchameleon service (missing .sys file) after verifying via registry + sc.exe query; left the benign SBAT/Secure Boot error untouched.

Problems Encountered

  • First queued diagnostic command vanished ("Command not found") because the agent re-enrolled with a new UUID (1ae77bda... -> 28708e66...) on reconnect. Resolved by re-resolving the UUID live and re-dispatching.
  • mbamchameleon service was not enumerated by Win32_Service/Win32_SystemDriver (CIM skips drivers whose file is missing), so the first delete attempt reported "not present." Resolved by reading the SCM registry key directly and deleting via sc.exe (which operates on the registry regardless of file presence) — DeleteService SUCCESS, key confirmed gone.
  • Initial memtest arming went pending (agent offline mid-reboot); confirmed on next reconnect that the bootsequence flag was consumed and results logged, verifying the test actually ran.

Configuration Changes

Remote changes on CyndyOffice (via GuruRMM, no local repo files changed except memory/log):

  • BIOS F.36 -> F.38 (applied by Howard via HP Support Assistant; confirmed in diagnostic).
  • Fast Startup disabled: HKLM:\SYSTEM\CurrentControlSet\Control\Session Manager\Power HiberbootEnabled 1 -> 0.
  • Windows Memory Diagnostic armed (bcdedit /bootsequence {memdiag}) and run — passed.
  • Orphaned service removed: sc.exe delete mbamchameleon (registry key HKLM\SYSTEM\CurrentControlSet\Services\mbamchameleon deleted).
  • QuickBooks Tool Hub repair run by Howard.

Repo files:

  • Updated .claude/memory/cyndyoffice-physical-hp-lockups.md (full diagnosis + outcome).
  • Added index line in .claude/memory/MEMORY.md (Project section).
  • This session log.

Credentials & Secrets

None discovered or created this session. RMM and Syncro auth via existing vault paths (infrastructure/gururmm-server.sops.yaml, Syncro per-user key for howard).

Infrastructure & Servers

  • GuruRMM API: http://172.16.3.30:3001
  • CyndyOffice: HP Pavilion Desktop TP01-2xxx, Win 11 Home build 26200, agent v0.6.57.
    • Product # (SKU): 318G6AA#ABA
    • Serial / Service Tag: 2MO21549RB
    • Motherboard: HP 8906; BIOS: F.38 (07/30/2025)
    • RMM client "AZ Computer Guru", site "Howard-VM" (misleading — physical machine).
    • Agent UUID at session end: 28708e66-342f-4130-b192-e308b582f00b (re-enrolls/changes on reboot).
  • Syncro customer: Universal Minerals International Inc (customer_id 34844920).

Commands & Outputs

  • Memtest result (System log, MemoryDiagnostics-Results): Event 1201/1101 "tested the computer's memory and detected no errors."
  • Lockup signature: Kernel-Power 41, BugcheckCode=0, no minidump, no WHEA, paired 6008 dirty shutdown; ~20 occurrences Apr 26 - Jun 9 2026.
  • QuickBooks crash: Faulting application QuickBooksMessaging.exe v1.0.9186.39137, faulting_module KERNELBASE.dll, exc 0xE0434352 (.NET); inner System.ObjectDisposedException at System.Windows.Forms.NotifyIcon.UpdateIcon.
  • Boot errors at last boot: SCM 7000 (mbamchameleon, file not found — now deleted); TPM-WMI 1796 (Secure Boot SBAT 0x800700c1 — benign).
  • sc.exe delete mbamchameleon -> [SC] DeleteService SUCCESS.

Pending / Incomplete Tasks

  • Monitor for any new Kernel-Power 41 events over ~1 week to confirm BIOS + Fast Startup fixed the freezing. (Howard declined an automated daily RMM watch — manual check on request.)
  • Confirm QuickBooks messaging crash is gone once the company file is opened and in active use.
  • If freezing recurs: PSU is prime hardware suspect; full hardware diagnostic (extended MemTest86 + drive/PSU) + backup and clean Windows reinstall (~1-2 days downtime) — documented publicly on the ticket.
  • Optional cleanups not done: pagefile is a fixed 1 GB on C: (recommend system-managed); consider QuickBooks upgrade to a supported year (22.0 past Intuit support).

Reference Information

  • Syncro ticket: #32397 (id 112445840) — https://computerguru.syncromsp.com/tickets/112445840
  • Public comments posted: 418383840 (findings), 418387764 (memtest passed), 418395504 (QB repair + contingency).
  • Memory file: .claude/memory/cyndyoffice-physical-hp-lockups.md
  • RMM commands this session: diagnostics + remediation dispatched to agent 28708e66-342f-4130-b192-e308b582f00b.

Update: 13:15 PT — Billing, RMM removal, client wiki

Billed and closed out the diagnostic engagement, removed the temporary RMM agent, and seeded the client wiki article.

Billing (Syncro #32397): 1.0h onsite (product 26118, $175.00). Posted a public resolution comment WITH do_not_email: false so the client was emailed the work summary plus the verbatim contingency note (if freezing recurs -> full hardware diagnostic + backup/clean Windows reinstall, ~1-2 days downtime). Line item 42807858; invoice #67810 (id 1650637398), total $175.00. Ticket left In Progress (monitoring), not marked Invoiced. Invoice PDF email is a Syncro GUI step — no verified API endpoint, did not probe.

RMM removal (client is break-fix / no-RMM): Confirmed CyndyOffice belongs to Universal Minerals (customer 34844920, prepay 0.0) — the agent was a temporary diagnostic tool. The Windows agent exposes built-in verbs (install/uninstall/start/stop/status/watchdog). Because running uninstall through the agent would kill the command mid-execution, wrote a removal script to C:\Windows\Temp\rmm-remove.ps1 and ran it via a detached one-time scheduled task (GuruRMM-Removal, SYSTEM) that fires ~8s after the agent acks: runs gururmm-agent.exe uninstall, taskkill /F, sc delete GuruRMMWatchdog/GuruRMMAgent, removes C:\Program Files\GuruRMM + C:\ProgramData\GuruRMM, self-deletes the task. Agent went offline immediately (service gone). Server-side record cleaned up: DELETE /api/agents/28708e66-... -> HTTP 204, confirmed removed from the dashboard. Consequence: the freeze monitoring window is now manual / customer-reported, not via RMM.

Client wiki seeded: Created wiki/clients/universal-minerals.md (break-fix profile, CyndyOffice hardware/specs, freeze + QuickBooks patterns, #32397 active work, history) and added the client to wiki/index.md (Clients table + Cross-Reference). To be expanded as more of the environment is learned, per the standard client-wiki pattern.

Config changes (this update): updated .claude/memory/cyndyoffice-physical-hp-lockups.md (billing + RMM-removal + general Windows-agent removal method); created wiki/clients/universal-minerals.md; edited wiki/index.md.

Reference: invoice #67810 (id 1650637398); Syncro comments 418397979 (billing, emailed); removal command a25eaab4-...; removed agent UUID 28708e66-342f-4130-b192-e308b582f00b.

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