Every new update has the potential of slowing down your computer. A new update will tend to put hardware to work a little bit more but the performance hits are usually minimal. Updates are also likely to turn on new features or processes that were not enabled before.

Why is computer so slow after update?

Mostly, low C drive disk space and the Windows update caches are the top two factors that stop your computer from running fast. Therefore, when your computer becomes slow after installing new Windows 10 update, extending C drive and clear Windows update cache will do most of the jobs.

Is updating your laptop bad?

Yes, usually," wrote Tim Fisher in Lifewire. "The updates that, on most computers, install automatically, oftentimes on Patch Tuesday, are security-related patches and are designed to plug recently discovered security holes. These should be installed if you want to keep your computer safe from intrusion."