On Thu, 26 Apr 2018 08:10:34 +0100, NY, another mentally deficient,
troll-feeding retard, blathered:

6 GB (increased from the 4 GB that it came with). CPU usage is around
90-100% when the PC slows down, even though after the initial high usage
after rebooting it normally stablises to about 10-20%. It's often simple
things like redrawing the screen when a window is moved, or when a
background window is clicked to bring it to the foreground.

What tasks are using the 100% CPU?

Often it's a generic process such as system or svchost, so nothing obvious
that points to a process that has been explicitly started by the user or by
one of the various auto-start-at-boot mechanisms such as
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run .

Do you really have no one ELSE to talk to other than this abnormal
attention-starved, retarded piece of Scottish ****? BG