The following are helpful run commands which are more often used in the IT field. Click on "Start" menu button then choose "Run". Use the following commands in the RUN command field to test their functionality. Some commands you might have to be in CMD prompt window in order to capture the logs (Type "CMD" in the RUN command prompt then type the other commands to test).
Command prompt
cmd
Network Diagnostics
hcp://system/netdiag/dglogs.htm
Group Policy setup
gpedit.msc
Microsoft configuration
msconfig
System Information and settings
msinfo32
Remote Desktop
mstsc
Windows update
wupdmgr
DNS info
pathping
Obtain media access control addresses of all network adapters
getmac
Status of website or local network
netstat
net
Hidden windows settings
tweakui
(Download: http://www.microsoft.com/windowsxp/Downloads/powertoys/Xppowertoys.mspx)
System files check for corruption
SFC /SCANNOW
Windows Malicious Software Removal tool
mrt
User password control
control userpasswords
control userpasswords2
Check you harddrisk for errors & repair
chkdsk -r
Flush Network cache
nbtstat -R
Flush DNS
ipconfig /flushdns

