To get rid of the lexplorer.exe application error, users need to disable a memory protection option. To do this, they should first click on Tools in the Internet Explorer browser.
Within the Tools menu, the user should click on Internet Options. From this window, they should go to Advanced Settings and search for: Enable memory protection to help mitigate online attacks. When the search yields this box, users should uncheck it to disable it. They will then click Apply and then OK.
If this did not solve the issue, computer users should run an antivirus program to check for viruses or driver issues.