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r/sysadmin • … • u/undercovernerd5

Local Security Authority Service (LSASS.exe) Chewing Up Hard Drive/Laggy Performance

I have a brand new Lenovo P1 on Windows 11 23H2 (all up to date) with one of those new Intel Core Ultra 9 processors, 32GB RAM, a PCIe SSD and a RTX 4070. This thing is a beast.

However, the LSASS.exe service is just munching away at my drive and I can't seem to figure it out. I've disabled a lot of the security and virtual platform features and at first that seemed to do the trick but it's back with a vengeance.

When it starts using more than 30MB/s the things start to lag and sometimes hits 70+ MB/s where things just straight up don't respond. Fans go blazing, all that fun stuff.

Is anyone else experiencing this? Anything I may be able to do? This seems to follow me around as this is the second device I've experienced this on in the last week

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