Use these steps if you need to temporarily turn off Windows Defender Antivirus. However, keep in mind that if you do, your device may be vulnerable to threats.
- Select the Start button > Settings > Update & Security > Windows Security > Virus & threat protection > Virus & threat protection settings.
- Switch Real-time protection to Off. Note that scheduled scans will continue to run. However, files that are downloaded or installed will not be scanned.