The Camera is on a Dell Laptop.
I've tried these steps:
Check your antivirus software
In your antivirus app, look for settings related to blocking access or permission to use your webcam. For help, visit your antivirus software company’s website.
Check for an outdated webcam driver
- Select the Start button, type Device Manager, and then select
Device Manager from the search results.
- Find your webcam under Imaging devices or Sound, video and game controllers.
- Press and hold (or right-click) the name of your webcam, and then select
Properties.
- Select the Driver tab, select the Driver Details button, and look for a file name that includes
stream.sys. If it’s there, your webcam was designed before Windows 7 and you'll have to replace it with a newer webcam.
- If you don't find a file name that includes stream.sys, try rolling back your webcam driver.
Roll back your webcam driver
- In Device Manager, press and hold (or right-click) your webcam, and then select
Properties.
- Select the Driver tab, select Roll Back Driver, and then choose
Yes. (Note that some drivers don’t provide a rollback option.)
- After the rollback is complete, restart your PC, and then try opening the Camera app again.
- If rolling back didn’t work or isn’t available, uninstall your webcam driver and scan for hardware changes.
Uninstall your webcam driver and scan for hardware changes
- In Device Manager, press and hold (or right-click) your webcam, and then select
Properties.
- Select the Driver tab, select Uninstall >
Delete the driver software for this device, and then select OK.
- In Device Manager, on the Action menu, select
Scan for hardware changes. Wait for it to scan and reinstall updated drivers, restart your PC, and then try opening the Camera app again.
Then I tried this:
Reset the cache folder in App Directory
1] Open File Explorer, copy-paste the following path in the explorer address bar and hit Enter:
C:\Users\<username>\AppData\Local\Packages\Microsoft.WindowsStore_8wekyb3d8bbwe\LocalState
Again, in case your Windows is installed on some other drive, replace ‘C’ above with the system root drive, followed by the name of your own user account. Also, replace the text <
username> with the username
associated with your account.
2] Now, in the LocalState folder, check whether the
cache folder is present or not. If it is there, rename it ‘cache.old’. After that, create a new folder and name it ‘cache’. In case the cache folder is not there by default, just create an empty new folder and name it ‘cache’.
Next, create a new folder and name it ‘cache’. In case the cache folder is not there by default, just create an empty new folder and name it ‘cache’.
3] Once you are done with the above step, close the File Explorer and reboot your system. After the reboot, run the Windows Store Apps troubleshooter again. This time it will not only detect the problem but also automatically
resolve it.
Restart your system once more and try opening the Windows Store. This method should work even if you have a local account.
And I tried running WSReset.exe, but nothing solved either issue.
There have been no newly installed applications, and if the issues occurred after an update I couldn't tell you when.