Title: DeathAdder V4 - Random freezes since recent Windows 11 update (possibly) | Razer Insider
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Title: DeathAdder V4 - Random freezes since recent Windows 11 update (possibly)

  • May 2, 2026
  • 2 replies
  • 28 views
R

Hi everyone,

I've been experiencing random mouse freezes with my Razer DeathAdder V4 on Windows 11 since a recent Windows update.

Key observation: Right after this update, my pointer acceleration was automatically re-enabled and I had sensitivity issues — which strongly suggests the update interfered with mouse-related drivers and settings. The freezes started appearing right after that.

Additional observation: When a freeze occurs at startup, the entire session seems unstable with possible freezes later on. When the startup is clean, the session remains stable throughout. This suggests a conflict happening during the initialization sequence at boot, between Windows and Synapse.

Steps already taken:

  • Disabled USB power management on all ports
  • Uninstalled USB Root Hub 3 driver
  • Completely uninstalled Synapse, cleaned residual files and registry entries
  • Fresh reinstall of Synapse with all updates applied

Result: Significant improvement but occasional freeze still happening at startup.

Hypothesis: The recent Windows 11 update modified mouse-related settings and drivers, creating a conflict with Synapse during the boot initialization sequence.

Has anyone experienced the same issue recently? Any suggestions welcome.

Thanks

2 Replies

R
  • Rynnh
  • Author
  • Insider Mini
  • May 2, 2026

Update:

After further testing:

When a freeze occurs at boot, the session tends to be unstable. When the boot is clean, the session remains completely stable — I just had a 2+ hour gaming session with absolutely no issue.

This strongly suggests a race condition at startup — Windows and Synapse seem to be initializing simultaneously, and depending on which one "wins", the session starts correctly or not. The recent Windows update likely modified the initialization order or speed of the mouse drivers, creating this random conflict at boot.

Will keep you posted.

R
  • Rynnh
  • Author
  • Insider Mini
  • May 5, 2026

Been several days now with zero freezes, neither at boot nor during sessions. Didn't change anything on my end — seems like Windows or Synapse pushed a silent update that fixed the conflict. Hopefully it stays that way, will update if anything changes.

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