The CrowdStrike CRWD -10.05%decrease; red down pointing triangle glitch that caused outages for millions of users of Microsoft MSFT 1.40%increase; green up pointing triangle

Windows devices last week continued to roil industries and snarl global air travel.

Around 8.5 million devices were impacted by the outage, CrowdStrike said in a statement, adding that it had brought a significant number back online.