XPS 17 9700, 64 GB RAM, Windows 11 (builds 26200 and 26300.9711), SupportAssist 5.2.5.2983.

Dell SupportAssist Remediation 5.5.16.3 (DellSupportAssistRemedationService.exe) was installed on 2026-09-24 when I ran "Software updates" in SupportAssist. Since then, its private commit has grown by about 10.7 GiB per hour (median) until it reaches the Windows commit limit, which takes about 20 hours here. At that point it holds about 230 GiB.

- Windows logged 98 "low virtual memory" events (System log, Resource-Exhaustion-Detector, event 2004) across 15 service runs. Every one names this service as the top consumer, at 193 to 238 GiB.

- Windows' leak detector (RADAR_PRE_LEAK_64) flagged it about 35 minutes after start.

- Working set stays around 1 GB, so Task Manager's default view hides it. Use the "Commit size" column to see it.

- 5.5.16.2 ran on this machine for 72 days with no such events.

- When the limit is hit, Chrome, WebView2, Slack and VS Code crash, along with dwm and some Windows services. Three times the PC shut down unexpectedly.

- Stopping the service released the memory immediately. I have since disabled it and uninstalled it, and there have been no events since.

5.5.16.3 is the fixed version for DSA-2026-426 and DSA-2026-446, so rolling back is not an option.

Question for Dell: is this known, and is a fixed build planned? Until then, what is the recommended way to keep SupportAssist and Dell Update from reinstalling it?

I have a full technical report with per-instance numbers and event IDs, and can send it to a Dell representative by private message.

Possibly related: Support Assist os recovery issue (Nov 1, 2026), https://www.dell.com/community/en/conversations/supportassist-for-pcs/support-assist-os-recovery-issue/6ae769d1f7ac5304d6d718bf , which describes SupportAssist repeatedly reinstalling OS Recovery 5.5.16.3.

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