Aspire One 725 high CPU usage when idle
I've just done a factory reset on my Aspire One 725 laptop, and am getting serious performance issues. Opening a web browser (IE, Firefox or Chrome) takes 25-35 seconds. Opening MS Word takes 25 seconds, etc...
Task Manager shows very high CPU usage even when the machine is idle (often sitting between 80-100% for a few minutes at a time, when NO applications are open in Task Manager). The list of Processes in Task Manager does not show anything using significant CPU however - just taskmgr.exe @2% and dwm.exe @1%.
I have installed AVG anti-virus (free edition), but have temporarily disabled it and the CPU continued to sit at 90-100%. There was/is no AV scan running.
I read somewhere that an old battery can cause problems on Acer laptops, but I tried removing the battery (and just running on mains power) and it made no difference.
RAM usage is appromimately 50% (950Mb used, of 2Gb).
This constant CPU usage when the machine is idle is rendering it pretty much un-usable. How can I work out what's causing it?
Answers
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Sorry - I should have added that it's running Windows 7 x64, and the model number is AO725...
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I used to have that problem when I had iTunes installed on my Windows computer.
Edited due to reading comprehension
I'm not an Acer employee.0 -
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Actually I had already done a factory reset. The only additional software that I've installed since the reset are:
- AVG anti-virus (free edition)
- Chrome browser
- Firefox
- MS Office 2007.
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The norton tool in link below should *help* rule out MBR infection. Anytime something weird is happening, I always think virus or rootkit first.
https://security.symantec.com/nbrt/nbrt.aspx
Another thing you can try is chkdsk
https://support.microsoft.com/en-us/kb/2641432
About a year ago, I fixed a neighbors computer that was experiencing a similiar issue as to what you have......and chkdsk fixed it. It was related to a corrupt word document....or something like that.
So I guess I would use chkdsk first since it's the easiest.
If that doesn't fix it, try the norton tool.
I'm not an Acer employee.0
