Make sure you have the latest BIOS or UEFI firmware, Chipset, Display (Video), Sound, USB3, Bluetooth, Network and all other drivers, or else download and install the latest now. Compare the latest drivers available for download with the ones presently installed in Device Manager reached by right clicking the Start button. Then if necessary continue with the other steps to go over your install most thoroughly.ģ) Update your drivers and BIOS/UEFI firmware from PC or motherboard maker's Support Downloads web page, using the full model number, Serial Number or Dell Service Tag on sticker. Start with Step 4 to turn off Startup freeloaders which can conflict and cause issues, then Step 7 to check for infection the most thorough way, then step 10 to check for damaged System Files, and also Step 17 to test a new Local Admin account. Can anyone suggest how I might be able to get it working without it using up all my CPU power and causing the fan to run at max speed?Ģ) If none of these help then Go over this checklist to make sure the install is set up correctly, optimized for best performance, and any needed repairs get done. My preference would be to use Windows Defender instead of AVAST. My computer is no longer overheating and the fan is running at normal speed in the background again. I followed various threads on here which made different suggestions (eg: ) but nothing helped.Įventually I tried reinstalling windows 10 (keeping personal files) but that didn't help either.įinally I tired installing the free version of AVAST antivirus, which automatically switches off Window Defender when it installs. When I went into Task Manager I found that Antimalware service executable was using very high CPU. For some time the fan on my PC laptop has been running at full speed with no programmes running.
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