Have a look in the Event Viewer..
Control Panel/Perf. & Maintenance/Admin Tools/Event Viewer..
there are three logs.... Systems is the want you want
These are log files and may safely be copied, saved to a folder fo
printing or exporting and deleted if required, they are all date an
time stamped
Clicking on an event and selecting properties you'll learn about th
event although this is not relevant here..... and then again th
modem log will reveal when it was last used ~ but not the computer
Dav