Precision 5520 DXGI regression — KB5079473/KB5077181/KB5074109 break Adobe CC via Intel P630 driver bypass (Optimus disabled)

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I am documenting a critical and reproducible regression on my 
Dell Precision 5520 caused by three consecutive Windows 11 
Cumulative Updates. Posting here to reach Dell Driver 
Certification Engineering directly.

HARDWARE CONFIGURATION:
- Dell Precision 5520 — Service Tag JNR4RQ2
- CPU: Intel Core i7-7820HQ (Kaby Lake)
- GPU display controller: Intel HD Graphics P630
  Dell-certified driver: 31.0.101.2137
- GPU renderer: NVIDIA Quadro M1200 Maxwell GM107
  Driver: 32.0.15.8195
- Configuration: Optimus DISABLED
  (Dell-recommended setting for Adobe CC workloads)
- OS: Windows 11 Pro 25H2, Build 26200.8037
- External 4K display via Thunderbolt

THE PROBLEM:
Each of the following CUs force-installs Intel P630 driver 
31.0.101.2140 despite ExcludeWUDriversInQualityUpdate=1 
being active and verified in the registry:
- KB5074109 (January 2026)
- KB5077181 (March 2026)
- KB5079473 (March 2026)

Driver 2140 breaks DXGI adapter negotiation specifically in 
Optimus-disabled mode. In this Dell-recommended configuration, 
the Intel P630 manages display output while the Quadro M1200 
handles rendering — driver 2140 corrupts this coordination.

SYMPTOMS:
- Adobe Premiere Pro, Photoshop, Lightroom Classic crash 
  on first GPU operation
- Premiere gpusniffer Plugin Loading.log = 0 bytes
- Mercury Playback Engine Software Only also fails — 
  confirms break is at DXGI init level
- Brave browser: black windows after Adobe corrupts 
  shared DXGI context

CURRENT WORKAROUND:
Full system restore via Macrium Reflect + KB blocked via 
DoNotAllowKBs + Windows Update suspended until April 2026.
Only Dell-certified driver 2137 is stable.

REQUEST TO DELL:
1. Flag this regression in the driver certification pipeline
2. Confirm which Intel P630 driver version is certified 
   for Precision 5520 with Optimus disabled
3. Escalate to Driver Certification Engineering with 
   

Full technical report (PDF):
https://drive.google.com/file/d/1Vp0JIJlMBWBklowj5xydAsz6BV4VcmVH/view?usp=drive_link

Eleven