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Windows Defender Exclusion
The editor creates and scans many project files. On some systems, Microsoft Defender real-time scanning can make those operations noticeably slower. Measure the problem before adding an exclusion; most projects do not need one.
An exclusion bypasses real-time malware scanning for that path. Exclude only the narrowest trusted project or generated-cache folder that shows the slowdown. Do not exclude your entire games directory, Downloads folder, repository collection, or any location containing untrusted projects.
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1) Open Windows Security
Open Windows Security from the Start menu (or search for it).
Windows Security in the Start menu
Windows Security app.
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2) Go to Virus & threat protection
From the left sidebar, select Virus & threat protection.
Virus and threat protection entry in Windows Security
Virus & threat protection entry.
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3) Open Virus & threat protection settings
Scroll to Virus & threat protection settings, then click Manage settings.
Manage settings under Virus and threat protection settings
Manage settings button.
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4) Open exclusions
Scroll to Exclusions, then click Add or remove exclusions.
Add or remove exclusions control
Add or remove exclusions.
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5) Add a new exclusion
Click Add an exclusion.
Add an exclusion menu
Add an exclusion dropdown.
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6) Choose “Folder”
Select Folder.
Folder option in the Add an exclusion menu
Choose a folder exclusion only after measuring a scanning-related slowdown.
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7) Pick the narrowest affected folder
Select one trusted project's folder, or only the generated subfolder identified by your performance investigation. Do not select the parent directory that contains every project.
Folder picker for a narrow project exclusion
Confirm the folder selection.
Removing the exclusion
Return to Windows Security → Virus & threat protection → Manage settings → Add or remove exclusions. Select the exclusion and choose Remove. Remove it after troubleshooting, when the project is no longer active, or before placing third-party files in that path.
