I recently installed Microsoft Security Essentials Version 1.0.1611.0 and have not been able to get a scheduled scan to run. I scheduled a weekly scan with all the default options on the settings tabs, but the scan never runs, even after my PC has been left idle for long periods of time. The only observation I have noted is that the task created by the program in Task Scheduler shows a status of Queued when the time and idle conditions have been met.It seems to be related to the idle constraint on the conditions tab in Task Scheduler, with this condition unchecked the task does run as expected.What is the scheduled task waiting for?

Go in the Settings tab, choose Scheduled scan in the left pane and uncheck the box "Start the scheduled scan only when my computer is on but not in use."Tell me if it works.Dom

Yes, it does work this way. When this box is unchecked there is no longer an entry in Task Scheduler, which seems to only be needed when there is an idle condition. If necessary I can leave the settings this way as the scan has a minimal impact on the computer while it is running.However, I am using this forum to find out if others are having this problem and why the scheduled scan does not run with the recommended settings. It is preferable that the scan is run while the computer is not in use.The scheduled scan settings on the Home tab indicates the next scan, but lacks a record of the date and time of the last successful scan, this should be added to confirm that the scans are executing as scheduled.

You should post your problem in the appropriate forum, too: http://social.answers.microsoft.com/Forums/en/msescan/threads. You can get answers from the MSE team there.Mobile AMD64 3000+, VIA Apollo K8T800 chipset, 1 G RAM, ATIRadeonMobility 9700, 20x DVDRW, C:XPSP3 (55G),D:WIN7 (25G),F:DATA (250G)

I posted my question in the MSE forum also.