The left click on my mouse isn't working

Question

The left click on my mouse isn't working

kizaganz 0

When I use the mouse, blue squares appear on the desktop, but I can’t click on any applications. Pressing Ctrl+Alt+Del+Esc resolves the issue, but it returns shortly afterward. I tried a different mouse, but the same problem persists. There are no issues with my USB ports, and this isn’t a problem caused by mouse software conflicts. Refreshing File Explorer didn’t help; running the sfc /scannow or DISM /Online /Cleanup-Image /RestoreHealth commands didn’t help either; those commands didn’t work either.

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Answer 1

Emma1-N 14,925 Microsoft Harici Personeli Moderatör

I will answer you in English based on your previous message. As a friendly suggestion, posting in Turkish may help your question reach a wider audience and increase the chances of receiving assistance from other community members.

Welcome kizaganz,

Thanks for the detailed description and for listing what you've already tried.

To narrow it down, could you tell me:

Is this a laptop, or a desktop? Does it have a touchscreen, touchpad or pen?
When did this start? For example, after a Windows update or after installing a new app?
Does it happen as soon as you sign in, or only after a few minutes of use?

While you check, please try these steps:

Step 1: Turn off ClickLock

Press Windows + R, type main.cpl, and press Enter.
On the Buttons tab, under ClickLock, clear the Turn on ClickLock box.
Click "Apply", then "OK".

Step 2: Turn off Mouse Keys When Mouse Keys is on, pressing Insert or 0 on the number pad can lock the mouse button down.

Go to Settings > Accessibility > Mouse
Turn Mouse keys off.
Also go to Settings > Accessibility > Keyboard and make sure Sticky keys and Filter keys are off.

Step 3: Rule out stray touch or touchpad input (if your device has a touchscreen or touchpad)

Right-click Start and choose Device Manager
Expand Human Interface Devices
Right-click HID-compliant touch screen (if it's listed) and choose Disable device
If you have a touchpad, go to Settings > Bluetooth & devices > Touchpad and turn Touchpad off for now.
Test the mouse. You can turn these back on later the same way.

Looking forward to your update.

kizaganz 0 Saygınlık puanı

2026-11-07T17:34:34.4466667+00:00

aaaaa
kizaganz 0 Saygınlık puanı

2026-11-07T17:34:52.3766667+00:00

I tried to do what you said, but even though I adjusted all the settings exactly as you wanted, I don’t have a touchscreen. I started experiencing this problem for no apparent reason. It doesn’t happen while I’m playing games—I only encounter this issue when I’m on the desktop or in a browser. The computer I’m using isn’t a laptop.
Emma1-N 14,925 Saygınlık puanı Microsoft Harici Personeli Moderatör

2026-11-10T07:04:08.1666667+00:00
Hello kizaganz,

Thank you for your update. Please try the step below: test with a new user account This shows whether the problem is tied to your user profile.

Go to "Settings" > "Accounts" > "Other users" and select "Add account".

Select "I don't have this person's sign-in information", then "Add a user without a Microsoft account", and create a local account.

Sign out, sign in to the new account, and use the desktop and browser for a while.