"updatetool.exe has stopped working"

@itz_Noel16  Start with a couple of basic checks of your Windows system files.  Here's how to run them:

• Hit Windows key-X
• Choose either “PowerShell (Administrator)” or “Command prompt (Administrator),” whichever option is offered
• Inside the window that appears, copy and paste “DISM.exe /Online /Cleanup-image /Restorehealth” without quotes into the window, and enter
• The system will start validating soon. If it throws an error, please list it here
• After it reaches 100%, hit Windows key-X again
• Again, choose “PowerShell (Administrator)” or “Command prompt (Administrator)”
• Inside the window, copy and paste “sfc /scannow” without quotes into the window, and enter
• Post the message you receive here

Please also make sure .NET 3.5 and 4.8 are both installed.  Hit Windows key-R and enter "appwiz.cpl" without quotes.  In the File Explorer window that opens, click "Turn Windows features on or off," and you'll see this:

Make sure both .NET entries (in the first red box at the top) look like this, minus the fact that 4.7 is now 4.8.

Please also check which VC++ runtimes you have installed.  Hit Windows key-i, select Apps, scroll down to the Microsoft Visual C++ Redistributables, take a screenshot of the whole list, and attach it to a post.