is there any way to determine if someone has been using my computer?
141348
install a keylogger any thing you did not type you know it was some one else. you can do a search for a key logger most of em are fre and provided for monitering family. so that little eyes dont see what their not sopose to see after momma and daddy catch them.
732879
You can look in the IIS logs, which are typically located under c:&#92;windows&#92;system32&#92;LogFiles\n\nOf course, unless you have extended logging turned on, you'd have to match up IP address of the user, since it would not strictly speaking show the page hits user by user.
6541
just use grep and search for suspicious activity
960785
Go into your Control Panel and hit 'Control H', both keys at the same time.  That will bring up your history.
111597
check your internet history at the top of your computer screen
939965
i think there is no such way by which you can check that someone is accessing your mail from other computer and he/she can again mark it as unread.\n\nPLz tell me if you can get any method.
63135
You can tell how long your computer has been running, or how long some processes (like Internet Explorer) have been running but I don't think you can tell how long you have been connected to the Internet. Open the Task Manager, and select the Processes tab. Click on the View menu and then on Select Columns. Check CPU Time and click OK. The System Idle Process field will tell you how long your computer has been running. The CPU Time might tell you how long some processes have been running, but only if that process has been taking CPU cycles continuously, which isn't really likely.
429083
there is a sight you can download for free its called www.internet spy. it will log down everthing he does on your computer... and send it to your e- mail.. he might be using a made up name so this will tell you everything he does it dont matter what name he uses
70555
Sometimes there's no evidence at all.\n\nIf you know your computer's normal operation, sometimes you can detect abnormal disk activity or abnormally slow connection when you're online, but those could also be due to many other things.\n\nTo avoid having someone hack in to your computer, always:\n\n1. Have an anti-virus program installed, and keep the definitions up-to-date.\n\n2. Keep your operating system up-to-date with the latest fixes from the vendor (Microsoft for Windows, Apple for Macs, etc.)\n\n3. Install a software firewall such as ZoneAlarm. The one provided by default in Windows XP isn't always enough to protect you.
955841
Yes, Go to Start ---> Run and type eventvwr in the dialog box. Press OK. This will open Event Viewer. Open up the Security Log and look for any successful logon attempts around the time you suspect someone logged on. Need any more help just email me at: chapers_16@hotmail.com
21197
Go to www.Cnet.com downloads section and type in search block under the cnet downloads page.. keylog catcher or keystroke catcher and download free shareware that records all keystrokes typed on the computer in which its installed.\n\nBigKat Microsystems
1001317
you can go to symantec security check which scan you computer for viruses and it looks for the latest viruses on there list
847858
The outgoing activity could be spyware so it can't hurt to have it checked unless you trust your anti-spyware software 100%.
783895
If you are using a router it should have a log capability.  Log onto the router and check the log.\n\nIn addition the previous answer mentioned keyloggers and goggling.  However I suspect they would be detected by an antivirus.\n\nI would also suggest that you look for any thing spying on your machine.  Kids are pretty smart.
278736
you need to know their ip address...if the ip matches all ids...than they are from the same computer...
590909
Another network user (an admin or co-worker) has likely logged onto the computer at some point.\n\nYeah... Andy is correct too
483393
for that you'll have to check you network log. or your security log if you policied it. you can also check the access logs to see who accessed what files.\nremember if someone got into your system because you left it on or didn't have a good passowrd or security system. then it isn't hacking. it's only poor security practice. never give your passowrd to others & change it regularly. If in fact you had a remote user access your system emotely it should be in your system logs by default. review them. and trace the IP address and if you have good security software like mine, we also get the Mac address and automatically log the traceroutes of all remote users. I get more info then that but thats propriatary info... a trade secret. But for free i can only tell you to go through your logs, if it was a remote unauthorized account access to your system. Tell me you had a firewall atleast, or even had your network monitor activated if you are using the internet.