If your mouse cursor moves normally in the BIOS or UEFI setup screen but stops responding once Windows finishes loading, that's actually useful information. It confirms the mouse hardware itself is working, since BIOS runs without any operating system drivers involved. The problem is happening somewhere in Windows.
This guide walks through the likely causes and how to confirm your mouse hardware is fine using the Mouse Tester.
Test Your Mouse Online for Free
Why This Points to a Windows-Side Problem
BIOS and UEFI setup screens use extremely basic, built-in support for input devices, independent of Windows drivers entirely. If your mouse moves the cursor correctly there, the physical connection, the mouse itself, and the port it's plugged into are all confirmed functional. Once you boot into Windows and the mouse stops working, the cause has to be something Windows-specific, like a driver, a startup service, or a software conflict.
Common Causes When This Happens
- Corrupted or missing mouse driver: Windows may fail to properly load the correct driver during startup.
- USB port power management settings: Windows sometimes selectively powers down USB ports to save energy, which can affect mouse connectivity after boot.
- A stuck or crashed Windows Explorer process: In some cases, mouse input can appear unresponsive if a core system process has frozen, even though the mouse itself is fine.
- Recent Windows update issues: A driver or system update that didn't install cleanly can occasionally break input device functionality.
- Malware or conflicting software: Rarely, background software can interfere with input device handling after Windows fully loads.
How to Confirm the Hardware Is Genuinely Fine
- Boot into BIOS or UEFI setup and confirm the mouse cursor moves as expected.
- Boot fully into Windows and check whether the mouse responds at all, even briefly during startup.
- If you can get into Windows using a keyboard, open the Mouse Tester once you have any mouse working, even a different one temporarily.
- Test with a different mouse in the same USB port to further isolate whether it's the specific mouse or the port and system.
This process can help determine whether the issue is isolated to Windows software, or whether a specific USB port has a problem that BIOS handles differently than Windows does.
Step-by-Step Fixes
Fix 1: Try Safe Mode
- Restart your computer and boot into Safe Mode, which loads Windows with minimal drivers and software.
- Check if the mouse works normally in Safe Mode.
- If it works here but not in normal mode, a specific driver or startup program is likely the cause.
Fix 2: Reinstall or Update the Mouse Driver
- If you can navigate with a keyboard, open Device Manager using keyboard shortcuts.
- Locate your mouse under Mice and Other Pointing Devices.
- Right-click, select Uninstall Device, then restart your computer to let Windows reinstall the default driver.
Fix 3: Check USB Power Management Settings
- In Device Manager, find your mouse's USB hub or root hub entry.
- Open its Properties, go to the Power Management tab.
- Uncheck the option allowing the computer to turn off the device to save power.
Fix 4: Try a Different USB Port
- Plug the mouse into a different USB port, ideally directly on the motherboard rather than through a hub.
- Restart Windows and check if the mouse responds in the new port.
Fix 5: Check for Pending Windows Updates
- If you have any way to access Windows Update, such as through Safe Mode, check for pending updates.
- Install any available updates, since a driver fix may already be included.
- Restart and retest after updating.
Isolating the Exact Cause
| What You Notice | Possible Cause |
|---|---|
| Mouse works fine in Safe Mode but not normal mode | Likely a driver or startup software conflict |
| Mouse doesn't work in Safe Mode either | Possible deeper driver or Windows installation issue |
| Different mouse also fails in the same port | Likely a USB port or power management issue |
| Different mouse works fine in the same port | Points back to the original mouse itself, worth retesting hardware |
When to Consider a Clean Driver Reset or System Restore
If Safe Mode works but the standard boot doesn't, and updating or reinstalling the driver doesn't resolve it, using System Restore to roll back to a point before the problem started can be an effective option, especially if the issue began shortly after a Windows update or new software installation.
FAQ
Does this mean my mouse is definitely not broken?
If it works correctly in BIOS, the mouse hardware and its basic connection are confirmed functional. The
issue is almost certainly on the Windows software side.
Can a Windows update really break mouse functionality?
Yes, though uncommon, a driver update that doesn't install cleanly can occasionally cause input devices to
stop responding until the issue is resolved.
Why does Safe Mode help diagnose this?
Safe Mode loads only essential drivers and disables most startup programs, which helps isolate whether a
specific driver or third-party software is causing the conflict.
Should I try a completely different mouse to test this?
Yes, if you have access to another mouse, testing with it helps confirm whether the issue is specific to
your original mouse or affects any mouse connected to that system.
Is reinstalling Windows ever necessary for this issue?
It's rarely necessary. Most cases resolve through driver reinstalls, Safe Mode troubleshooting, or a system
restore before a full reinstall would be needed.
Conclusion
A mouse that works in BIOS but not in Windows has already told you the hardware is fine - the fix lies in drivers, power settings, or a software conflict within Windows itself. Working through Safe Mode and driver troubleshooting resolves this in most cases without needing to replace anything.
Test Your Mouse Online for Free once you're back in Windows to confirm everything is working correctly again.