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Real-time Windows Defender file scanning with many small files RRS feed

  • Question

  • I'm a long-time self-employed software developer, and I have hundreds of thousands of small files with names like "abc123" (no file extension).

    I'm using Windows 10, and it's updated regularly.

    Yesterday morning, for reasons unknown to me, real-time file scanning kicked in in Windows Defender, causing a huge slowdown when archiving or otherwise accessing the files.

    I have a benchmark program that iterates across files, and opens each in turn, and then closes it immediately, and have confirmed that when I run this program, "Antimalware Service Executable" is causing a big hit.

    I know that I can disable real-time scanning on a temporary basis, and have confirmed that it's the bottleneck.

    I tried the exclusion list route, specifying the root path name for the files, and this has no effect.

    So the other alternative that I know of is to disable Defender completely, and use something else.

    There are lots of web pages on this issue, but so far I've not found a good solution.

    Anything I'm missing here?

    Thursday, January 30, 2020 6:29 PM

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