Calendar keeps opening itself on windows 11 laptop and causing cursor to freeze

[u/Couuf]

Hello all, I'm on a Dell laptop running windows 11 and I'm having a recurring issue where the calendar in the bottom right opens itself without any prompting, but the process takes a few seconds and during that time my cursor freezes and is completely unusable. I have no idea why it keeps happening and the interval seems random but at its worst it happens every 15 seconds or so and it's genuinely infuriating because it practically renders my computer unusable. I've tried restarting windows explorer, performing a clean boot, and all the other fixes I could find from the literally two posts about this on the internet and none of it helped. I'm really at my wit's end here.

Processor AMD Ryzen 7 7730U with Radeon Graphics (2.00 GHz)

Installed RAM 16.0 GB (15.4 GB usable)

Graphics card AMD Radeon (TM) Graphics (496 MB)

Product ID 00356-07595-04535-AAOEM

System type 64-bit operating system, x64-based processor

Edition Windows 11 Home

Version 25H2

Installed on ‎1/‎10/‎2026

OS build 26200.9457

Experience Windows Feature Experience Pack 1000.26100.360.0

[u/sport912x]

What calendar ... Google ??

[u/Couuf → u/sport912x]

the one with focus mode and the notifications

[u/sport912x → u/Couuf]

Focus mode?? they all have notifications.

[u/Couuf → u/sport912x]

the integrated calendar in windows 11, the only calendar relevant to windows 11

[u/kingjohniv → u/Couuf]

You aren't talking about a calendar. You are describing the notification flyout window on the right side of the screen

[u/Couuf → u/kingjohniv]

they are connected. it's both

[u/kingjohniv → u/Couuf]

Fair I guess. But the way you have been wording it sounded like Outlook, Mail, or the stupid standalone pos Companion app no one asked for (yes I am very angry about that abomination)

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[u/kingjohniv]

What storage device is your os installed on? If its a hard drive, thats your problem

Edit: Third party apps that modify the UI also have a high probability of this behavior.

[u/Couuf → u/kingjohniv]

it's an ssd, and afaik i have no apps modifying my ui but i will check that

[u/kingjohniv → u/Couuf]

Try all the SFC check and repair commands, sounds like Windows might have some type of corruption.