My computer installed 1803 feature update on Saturday. At the time I had on avast antivirus, but the installation went smoothly with no issues.
After the update I immediately noticed an annoying tendency for programs to briefly pause and fade out when I exit them. Before the update they exited instantly with no delay. I noticed the computer will also sometimes turn on the fan and the CPU runs audibly though the computer is idle without any scans, updates, or anything running in the background.
I try to open task manager to find what is running, and it reports that task manager is taking up 20% CPU usage, but then sharply falls immediately after opening task manager. Nothing else takes up more than 1-3% CPU usage.
I have tried all fixes from these websites:
I am now wondering if reverting back to the previous version and reinstalling it with avast uninstalled would perhaps fix my issues.
System specs:OS Name Microsoft Windows 10 Home
Version 10.0.17134 Build 17134
OS Manufacturer Microsoft Corporation
System Name LAPTOP-LES8F3J8
System Manufacturer LENOVO
System Model 80RU
System Type x64-based PC
System SKU LENOVO_MT_80RU_BU_idea_FM_Lenovo ideapad 700-15ISK
Processor Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz, 2592 Mhz, 4 Core(s), 8 Logical Processor(s)
BIOS Version/Date LENOVO E5CN62WW, 3/9/2018
SMBIOS Version 2.8
Embedded Controller Version 1.23
BIOS Mode UEFI
BaseBoard Manufacturer LENOVO