Device error 0xA00F4244: Camera app can't find a camera (NoCamerasAreAttached)
Updated
Cleared for publishing after the automated checks on .
What the code means
Windows doesn't recognize the built-in or external camera, most often because of a camera driver problem (an outdated, missing or damaged driver).
Code facts for 0xA00F4244
| Code as Windows shows it | 0xA00F4244 |
|---|---|
| Type | Other error code |
| Hexadecimal, 8 digits | 0xA00F4244 |
| Decimal (unsigned) | 2685354564 |
| Decimal (signed 32-bit) | -1609612732 |
| Group | Device Manager and device errors |
Read with care
- The customer bit (C) is set, so this is not a Microsoft-defined HRESULT; facility and error number cannot be read from Microsoft's tables. ([MS-ERREF]: HRESULT)
Where this error shows up
This code shows up in the Windows Camera app.
Shown by the Camera app when Windows doesn't detect the built-in or external camera (Microsoft support page).
Applies to
Windows 11 and Windows 10 (as listed at the top of the Microsoft page)
Try these first
These steps carry no risk flag in the data. They keep the order of the full list below, which is not reordered. A step without a flag is not a promise that it is safe for your computer.
3 steps to try, in order
Steps are grouped by the Microsoft page they come from. The page lists only what those pages give; other causes of 0xA00F4244 are not covered. 1 step is flagged.
If this page and Microsoft's page differ, follow Microsoft's page.
From: Camera app shows error "0xA00F4244 NoCamerasAreAttached"
Source: Camera app shows error "0xA00F4244 NoCamerasAreAttached" (Microsoft Support), checked Nov 14, 2026. Summary in our own words; Microsoft's page has the full steps.
Microsoft also mentions the automated Camera troubleshooter in the Get Help app; these are its options when the troubleshooter can't fix it.
Update the driver with Windows Update
Check Windows Update for a newer driver for the camera (Microsoft's 'Automatically get recommended and updated hardware drivers' page explains how).
Switch to the USB Video Device driver
Disables or removes driversIf Windows Update has no newer driver, or the new one didn't help: right-click Start and open Device Manager, expand Cameras, right-click the camera and choose Properties.
On the Driver tab select Update driver > Browse my computer for drivers > Let me pick from a list of available drivers on my computer.
Choose USB Video Device, select Next to install it, then Close.
Microsoft advises: Save your work and close all apps first. If Windows doesn't reinstall the driver after the restart, update the driver from Device Manager. (Update drivers through Device Manager in Windows)
Get a driver from the camera maker
In Device Manager open the camera's Properties; the General tab shows the Manufacturer (and sometimes the model). If it says Microsoft, the camera may be on a generic driver - check the camera's or the PC's documentation for the real maker.
Find the maker's driver download page and install the driver as described in the 'Update driver manually' part of Microsoft's 'Update drivers through Device Manager in Windows' page.
Stop and get help
If these steps do not fix the problem, or you are not sure about a step, stop and get help from Microsoft Support or from the maker of your PC. Stop at once if the data on this computer is at risk: back up your files first, or ask a professional before you go on.
Dates and review
| Automated checks | first check: ; fourth check: |
|---|---|
| Microsoft pages read |
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| Review status | Cleared for publishing after the automated checks on . |