microsoft / microsoft/PowerToys

[File Locksmith] ExplorerCommand::LaunchUI ignores CreateProcessW failure

Open Beginner friendly
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Issue-Bug Product-File Locksmith
Dominant language
C
Stars
139k
Forks
8.6k
PR merge metrics
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Description

Bug

CreateProcessW() return unchecked. On failure, CloseHandle on uninitialized handles + returns S_OK.
Fix: Check return, HRESULT_FROM_WIN32(GetLastError()) on failure.
Found by AI test review fleet

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start at ExplorerCommand::LaunchUI and inspect its CreateProcessW call and failure path. Verify the process-creation result is handled before using the process and thread handles, and that failure returns the Windows error as an HRESULT; done when the unchecked-failure behavior is covered by the relevant existing tests or validation.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
desktop, operating-systems
Issue type
Bug
Difficulty
2/5
Estimated time
1-3 hours
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
68/100

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