Rolling out in May for Word initially, the feature will reduce the program's startup time. Here's how it works.

"Microsoft is introducing a new Startup Boost task to optimize Office applications' performance and load-time. It will roll out in May 2025, initially for Microsoft Word. The task is optional, visible in Windows Task Scheduler, and can be disabled via in-app settings. No admin action is required for the rollout."

Microsoft will make Word and other Office apps startup faster by introducing a new Startup Boost task. Read this article for more details.