Why your PC runs slower after Windows Update and how to recover

It's a common experience: Windows updates overnight, and the next day gaming performance is worse. Here's what happens and how to fix it.

What updates change

Major Windows updates can reset:

• Power plan settings (back to Balanced)
• Some registry tweaks (particularly scheduling and visual settings)
• Service configurations (disabled services get re-enabled)
• Driver updates (new GPU driver may have different default settings)

Immediate post-update checklist

1. Power plan: check it's still on Ultimate Performance

powercfg /getactivescheme

2. Services: check SysMain, WSearch, DiagTrack status

sc query SysMain

3. Visual FX: Control Panel → System → Advanced → Performance — may have reset to "Let Windows choose"

4. Fast Startup: check it's still disabled

5. GPU driver: if the driver updated, NVIDIA Control Panel settings may have reset to defaults. Check Low Latency Mode, Power Management Mode.

Feature updates vs security updates

Security updates (monthly "Patch Tuesday"): minimal settings disruption. Mainly patches.

Feature updates (twice yearly, like 22H2, 23H2): significant disruption. Treat these like a fresh install — re-verify all your gaming settings afterward.

Preventing some resets

Store your registry tweaks in a .reg file. After feature updates, double-click to reapply all of them at once.

IzanagiOP can reapply all tweaks in one click after a Windows update resets them. https://terweb.lt/