What will you do if you get an issue notification stating that app.exe has stopped working?
There are several methods mentioned in this post.
So why does this issue notification occur?

There are several causes:
Then how to fix the .exe has stopped working problem?
Keep reading, and then you could find 7 useful methods.
You may receive the warning pop-up because of a temporary lack of system resources.

Step 2: Go to theProcessestab and check that that the program is not on the list.
If it is, right-click it to chooseEnd task.
Then restart the troubled program to look to see if the glitch notice still appears.

Step 2: ClickWindows Securityand then chooseVirus & threat protectionunderProtection areas.
Step 3: ClickScan optionsand then checkFull scan.
Step 4: Wait for the process to complete, then it will show whether there is any virus.

If there is, use Windows Defender to fix it.
Here is a quick guide:
Step 1: Go to the installation folder of the troubled app.
Step 2: Find the.exefile, right-click it to chooseProperties.

Step 3: Go to theCompatibilitytab, check the box next toRun this program in compatibility mode for.
Choose the preferred Windows version and clickOKto save changes.
Step 4: Restart the program and look to see if the error alert is gone.

Step 4: Relaunch the program and check whether the error still occurs.
Step 2: Choose the Windows installation drive (C: drive) and then clickOK.
Step 3: In theDisk Cleanup for (C:)window, check the box next toTemporary files.

ClickOKto start to clean temporary files.
you’ve got the option to also useStorage Senseto regularly clean the temporary files.
Fortunately, there are two powerful tools that you’re free to use: SFC and DISM.
Here is the tutorial:
Step 1: Typecmdin the search box and then right-clickCommand Promptto clickRun as administrator.
Step 2: Typesfc /scannowin theCommand Promptwindow and then pressEnter.
Step 1: OpenCommand Promptas the administrator and then typeDISM.exe /Online /Cleanup-image /Restorehealthin the window, then pressEnter.
Step 2: Wait for the process to finish and then reboot your PC.
Relaunch the program to see whether the error is fixed.
Step 2: Right-click your GPU driver to chooseUpdate driver.
Step 3: ChooseSearch automatically for updated driver software.
Step 5: Reboot your system and then restart the program to test whether the error is gone.
But which one is the best and safest software to back up your system?
Speaking of backup, we find that there is a piece of brilliant and freeWindows backup softwarecalled MiniTool ShadowMaker.
It is very simple and quick to back up your system and then restore it.
Step 2: ClickConnectunderThis Computerto get into the main interface.
Step 3: Navigate to theBackuppage.
MiniTool ShadowMaker backs up your operating system and chooses the destination by default.
So you just need to clickBack up Nowto begin the backup task.
Step 4: Wait for MiniTool ShadowMaker to finish backing up your operating system.
In addition, you might also find several useful methods to solve the problem.
And to keep your system safe, you should back up your system regularly.
you might get detailed instructions by reading this post Ctrl Alt Del Not Working?
Here Are 5 Reliable Solutions for You!