This problem may happen on these apps Explorer, Excel, Adobe Reader, or OneDrive.
Additionally, the warning pop-up can appear when you open a USB drive due to yourAutoPlay controls.
If you are encountering such a problem, what should you do?

Now, you come to the right place and we will show you how to easily fix it.
Here is what you should do:
Step 1: Go toStart > options > Accounts.
Step 2: Under theFamily & other userstab, clickAdd someone else to this PC.

Step 3: SelectI dont have this persons sign-in information.
Step 4: ClickAdd a user without a Microsoft account.
Step 5: Enter the user name and password.

Lets see how to add your user account to the administrator group.
Step 1: PressWin + Rto launch theRuncommand, inputlusrmgr.mscand clickOK.
Step 2: ClickGroupand double-clickAdministratorsfrom the right side.
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Step 3: In thePropertiestab, clickAdd.
Step 4: In theEnter the object names to selectfield, input a user name, clickCheck NamesandOK.
Alternatively, it’s possible for you to clickAdvanced > Find Nowto search for your user name.

Step 5: Finally, clickOKandApplyto save the change.
Now, you could test whether you still receive the oops message.
To fix this problem, you’re free to perform anSFC scanand DISM scan in Windows 10.

Step 1: Launch Command Prompt as administrator.
Step 2: Input this command:sfc /scannowand pressEnter.
Step 3: The scan will start.

Dont interrupt it until the scan finishes.
After that, find out if the error is removed.
If it still exists, do the following operations:
Step 1: Run Command Prompt with admin rights.

Step 2: TypeDISM /Online /Cleanup-Image /RestoreHealthand pressEnter.
Are you experiencing some annoying bugs or crashes when using your box?
After the scan, your problem should be fixed.
If not, try another solution.
Disable AutoPlay
As mentioned above, the file association error may be related to the AutoPlay setting.
To fix this issue, you’ve got the option to disable this feature.
Step 1: Go toSettings > Devices.
Step 1: Inputregeditto the search box of Windows 10 and run this editor.
Step 2: Navigate toHKEY_CLASSES_ROOT\Lnkfile.
Step 3: peek if there is a value calledIsShortcutin the right panel.
Step 3: verify its value data is set to%SystemRoot%\system32\CompMgmtLauncher.exe.
Step 2: Expand theshellfolder, delete thefind and cmdfolders.
Here, it’s possible for you to reset the file association to fix your issue.
Step 1: Go toSettings > Apps > Default apps.
Step 2: Reset to the Microsoft recommended defaults.