Windows 10 Cryptographic service high disk usage - Microsoft Q&A
https://docs.microsoft.com/en-us/answers/questions/82423/windows-10-cryptographic-service-high-disk-usage.html
Sep 01, 2020 · Delete, clear the message that it's in use, Delete, clear the message..... eventually you finally get it while the service is down. I have NOT tried, but my next step would have been to set the service to disabled, stop it, delete the folder, re-enable and restart. I always managed to get it to go before I got that desperate.
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