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100% CPU Usage and Antimalware Service Executable

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Posted · Original PosterOP

In the past few weeks I've noticed that sometimes my PC will slow down, when checking task manager I noticed that some things were casing my CPU to use 100% of its power.


The culprits are; Antimalware Service Executable, System interupts and Microsoft Compatability Telemetry. These all cause my cpu to ramp up to 100% for roughly 5 mins before dying down. Windows defender doesn't detect any malware or viruses, I've only downloaded off of legitimate websites with the lock symbol in the top. It never used to happen in the past 2 years of owning. I am on windows 10 Pro version 1909.


Does anyone know a solution, is it common or do I have to just wait for an update to fix the problem???


CPU: Intel Core i7-8700K (4.7GHz) | Motherboard: ASUS Intel 1151 Socket Z370 Chipset Strix F D4 ATX | RAMCorsair Vengeance LPX 16 GB DDR4 3000 MHz | GPU: GIGABYTE AORUS GTX 1080 Ti Xtreme 11Gb | Case: NZXT H440 Black with Red Trim | Storage: Samsung 250 GB 860 EVO SSD + Seagate Barracuda 2 TB HDD | PSU: Corsair RMi Series RM750i | Display: ASUS VG248QE | Cooling: Corsair Hydro Series H150i PRO RGB Liquid CPU Cooler | Keyboard: CORSAIR K55 RGB | MouseRAZER DeathAdder Elite



2018 MacBook Air | CPU: 1.6 GHz (i5-8210Y) dual‑core Intel Core i5, Turbo Boost 3.6 GHz, with 4 MB L3‑cache | RAM: 8 GB of 2133 MHz LPDDR3 SDRAM | GPU: Intel UHD Graphics 617 with up to 1.5 GB LPDDR3 SDRAM | Storage: 128 GB PCIe-based SSD | Display: 13.3", native 2560 x 1600 pixels (16:10, 227 ppi) IPS.


HP Pavillion 14 | APU: AMD A10-5745M with Radeon HD Graphics (2.10GHz) | RAM: 8GB DDR3 1333MHz | Storage: Hitachi 1TB SATA SSD



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Disable windows defender, and run the windows debloater script from here: https://github.com/Sycnex/Windows10Debloater.

If that doesn't work, install gentoo.

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