Overview
- User reports that the AMD External Events Utility process atieclxx.exe has been writing to system drives nonstop gained wide attention Monday after a Reddit post amplified multiple measurements.
- AMD has publicly acknowledged the problem and told users it is investigating with a fix expected in the upcoming Adrenalin 26.11.1 driver though no firm release date has been given.
- Affected systems show sustained write rates commonly reported between about 0.3 MB/s and 5 MB/s, which if continuous can add hundreds of gigabytes to multiple terabytes of writes over weeks or months.
- Users have found short-term mitigations such as stopping the AMD External Events Utility service or disabling Resizable BAR, but those steps can break Radeon features like FreeSync or reduce gaming performance.
- The bug appears inconsistent across Windows 10 and 11 systems and across driver builds back to Adrenalin 26.7.1, so the key near-term development to watch is AMD’s 26.11.1 driver release and its changelog.