

If Windows Defender is turned off, it’s likely that the utility may have been disabled inadvertently. Why can’t I turn on Windows Defender antivirus?

Windows Defender is turned off by group policy – Sometimes Windows Defender won’t run since it’s disabled from Group Policy.In addition, be sure to remove all files and registry entries associated with your antivirus. If that’s the case, remove all third-party antivirus tools from your PC. Windows Defender won’t open – Many users claim that Windows Defender won’t open on their PC.Can’t turn on Windows Defender Windows 8 – This problem can also appear on Windows 8, but you should be able to fix it using one of our solutions.Speaking of problems, these are some of the common issues that users reported:

However, many users reported that Windows Defender doesn’t work on their PC. Windows Defender is a built-in antivirus in Windows 10, and it provides solid protection for the most part. This isn’t the first time users have reported they can’t turn on Windows Defender, although we noticed an increased number of reports. This happens even though users confirm they have uninstalled all third-party security software. Many Windows 10 users are reporting that Windows Defender is not opening because Microsoft’s antimalware tool detects another antivirus software running. Restoro has been downloaded by 0 readers this month.Download Restoro PC Repair Tool that comes with Patented Technologies (patent available here).Ĭlick Start Scan to find Windows issues that could be causing PC problems.Ĭlick Repair All to fix issues affecting your computer's security and performance.Home › Fix › PC Software › Windows Defender won’t turn on
