July 25 (Reuters) - More than 97% of Windows sensors are

back online, CrowdStrike's ( CRWD ) CEO George Kurtz said on

Thursday, nearly a week after a software update by the

cybersecurity firm triggered a global outage.

The company's Falcon platform sensor is a security agent

installed on devices such as laptops and desktops that protects

them from threats.

The outage happened because the advanced platform contained

a fault that forced computers running Microsoft's ( MSFT ) Windows

operating system to crash and show the so-called blue screen of

death.

Microsoft ( MSFT ) said on Saturday about 8.5 million

Windows devices had been affected in the outage that had left

flights grounded, forced broadcasters off air and left customers

without access to services such as healthcare or banking.

"Our recovery efforts have been enhanced thanks to the

development of automatic recovery techniques and by mobilizing

all our resources to support our customers," Kurtz said in a

post on LinkedIn.