hope this is posted in right place ?
Recentlty started having a few problems with Acer Aspire laptop around 6 years old. sometimes when I turn it on at the OS start up screen the drive begins to make the noise it usually makes when doing something but it doesn't stop. it just goes on and on, in task amanger CPU usage runs at about 70% while this is happening, also the keyboard becomes very very slow to respond and sometimes does not respond at all - I am having to use USB keyboard to type this. also, if I try to shutdown it just hangs and even won't shut down when I hold down the power button for quite a while, I have left it and sometimes it has taken an hour to switch off. I have been on a malware forum and did extensive checks and scans etc and the helper advised me that the didn't believe it was a malware issue and directed me here. The frustrating things is sometimes evrything works perfectly well,. any advice would be much appreciated.