[BUG] Computer use returns black/empty screenshots on Intel i3 iGPU — Windows 11 Home, worked before system reset

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

Bug Description

Computer use in Cowork captures a completely black/empty screenshot every time. The "Capturing screen" step runs but returns a pure black image with nothing visible. Claude then cannot see anything on screen and the session fails.

This setup worked perfectly before a Windows reset. After resetting Windows (same hardware, same edition), computer use consistently returns black screenshots.

Environment
Claude Desktop version: 1.32885.1.0 (MSIX package)
OS: Windows 11 Home Single Language, Version 25H2 (Build 26200.9168)
GPU: Intel integrated graphics (i3 processor, no discrete GPU)
RAM: 8GB
Laptop: ASUS

What I've tried (all failed)
Updated Intel graphics driver via Intel Driver & Support Assistant — no change
Restarted graphics driver — no change
Created shortcut with --disable-gpu-compositing flag — MSIX packaging appears to block/ignore it
Verified Windows screenshot/screen recording privacy permissions — all ON, 0 requests logged (Claude never even hits the permission layer)
Disabled Intel Display Power Savings in Intel Graphics Command Center (both On Battery and Plugged In)
Set Intel Power Efficiency slider to minimum
Changed Windows display scaling from 125% to 100%
Checked for HDR — laptop does not support HDR
Attempted to clear GPU cache at %APPDATA%\Claude\ — directory does not exist (MSIX sandboxing)

What Should Happen?

Expected behavior

Computer use should capture the actual desktop contents as a screenshot.

Actual behavior

Every screenshot is a solid black image. Claude responds as if it can see nothing on screen.

Error Messages/Logs

Steps to Reproduce

1. Install Claude Desktop from Microsoft Store on Windows 11 Home, Intel i3 iGPU only
2. Enable computer use in Settings → General
3. Start a Cowork session and ask Claude to take a screenshot
4. Screenshot returns completely black

Note: Computer use worked on this same hardware ~1.5 months ago
on an earlier Claude Desktop version. In between, the laptop was
reset and Claude Desktop was freshly installed. Unable to confirm
whether the reset or a Claude Desktop update caused the regression.

Claude Model

Not sure / Multiple models

Is this a regression?

Yes, this worked in a previous version

Last Working Version

Unknown — last used ~1.5 months ago, don't have the version number

Claude Code Version

N/A — this is a Claude Desktop bug, not Claude Code CLI. Desktop version: 1.32885.1.0

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Other

Additional Information

Key observations
The cua-driver.exe process runs and attempts capture, but the API returns empty frames
Windows Privacy settings show 0 screenshot requests — the capture never reaches the OS permission layer
Regular Cowork tasks (file access, code, connectors) work fine — only screen capture is broken
This is a fresh Windows install on the same hardware where it previously worked

Notes
This appears related to Intel iGPU + MSIX packaging interaction
Similar reports: #45031, #25801, #81664, #83028 — but those involve HDR or discrete GPUs. This is Intel-only, no HDR, and specifically a regression after Windows reset
No user-facing "Disable Hardware Acceleration" toggle exists in Claude Desktop settings
MSIX AppContainer restrictions block all standard Electron GPU flag workarounds