Windows installer fails with error 2812 and blocks
The Windows installer fails on upgrade with error 2812, a broken Browse button, or an 'another installation in progress' message.
Tier I · Proven The best-established problems.
9 public reports · first reported 11 September 2026 · last reported 16 September 2026
What's going wrong
Users upgrading the Windows installer see several failures.
AI-assisted: written with the help of AI from the reports. The idea report has the full summary.
In the idea report
- The full summary.
- The products the 9 reports are about, and how many came each month.
- Related problems.
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