I have seen various similar threads on here and elsewhere, but seem unable to find a solution to this issue.
Myself and colleagues all run Microsoft Security Essentials, the free version.
We have issues with the scheduled scan actually runnings. My settings are:
Run a scheduled scan on my computer - CHECKED
Scan Type: QUICK SCAN
Check for the latest virus and spyware definitions before running a scheduled scan: CHECKED
Start the scheduled scan only when my computer is on but not in use: UNCHECKED
Limit CPU usage during scan to: 50% (CHECKED).
My computer is always on and awake from 8:30am and does not go to sleep at any time until possibly around 12:00pm.
We have run tests, changing the time and keeping the computer awake (just in case) for two hours after the scheduled start time, as I know these are approximate.
I read somewhere that I should go into Control Panel > Administrative Tools > Services > Task Scheduler and check that this is on and set to 'automatic', and this is all done.
Without fail, when I check MSE, it shows the last scan as whenever I actually ran it manually.
Is there a reason why these scans are not running?