
What you need to know
- One of the largest network outages in global history affected millions of PCs around the world.
- Flights were grounded, banks were affected, and emergency services were unavailable in many areas.
- The situation was caused by a CrowdStrike update that included a bug.
- Microsoft released a recovery tool to help restore PCs affected by the issue, and the company has now improved that tool to include two recovery options.