Where to find the command prompt in windows?

Find command prompt: \\ComputerName\c$\WINDOWS\system32
It is the ipconfig.exe file.

Type in set in command prompt:
C:\Documents and Settings\jqiu-admin>set
ALLUSERSPROFILE=C:\Documents and Settings\All Users
APPDATA=C:\Documents and Settings\jqiu-admin\Application Data
CLIENTNAME=D735054T
ClusterLog=C:\WINDOWS\Cluster\cluster.log
CommonProgramFiles=C:\Program Files\Common Files
COMPUTERNAME=AXONREMOTE-K1
ComSpec=C:\WINDOWS\system32\cmd.exe
EXCHICONS=C:\Program Files\Exchsrvr\bin\maildsmx.dll
FP_NO_HOST_CHECK=NO
HOMEDRIVE=C:
HOMEPATH=\Documents and Settings\jqiu-admin
LOGONSERVER=\\WINDCP18
NUMBER_OF_PROCESSORS=2
OS=Windows_NT
Path=C:\Program Files\HP\NCU;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\
Wbem;C:\WINDOWS\system32\WindowsPowerShell\v1.0;C:\Program Files\System Center O
perations Manager 2007\;C:\Program Files\Windows Imaging\
PATHEXT=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.PSC1
PROCESSOR_ARCHITECTURE=x86
PROCESSOR_IDENTIFIER=x86 Family 15 Model 2 Stepping 5, GenuineIntel
PROCESSOR_LEVEL=15
PROCESSOR_REVISION=0205
ProgramFiles=C:\Program Files
PROMPT=$P$G
SESSIONNAME=RDP-Tcp#42
SystemDrive=C:
SystemRoot=C:\WINDOWS
TEMP=C:\DOCUME~1\JQIU-A~1\LOCALS~1\Temp\2
TMP=C:\DOCUME~1\JQIU-A~1\LOCALS~1\Temp\2
UATDATA=C:\WINDOWS\system32\CCM\UATData\D9F8C395-CAB8-491d-B8AC-179A1FE1BE77
USERDNSDOMAIN=INTERNAL.LOCAL
USERDOMAIN=INTERNAL
USERNAME=jqiu-admin
USERPROFILE=C:\Documents and Settings\jqiu-admin
windir=C:\WINDOWS

Look at what's under path then put it under envrionment -
A more permanent way to manage environment variables is provided in the System Properties dialog box. Open Control Panel-Performance and Maintenance-System (or right-click on My Computer and choose "Properties"). In the box that opens, click the "Advanced" tab to obtain the dialog box shown below. Next, click the button "Environment Variables".

For more information, click this link below:
http://vlaurie.com/computers2/Articles/environment.htm

Why can't I join my computer to the domain?

I have a Win2k8 server - server1, got DNS and ADDS installed.
Domain name server.com.

I got another Win2k8 server - server2, can ping server.com but why can't I join it to the domain?

--> check your DNS on server2, make sure it's pointing to the server1's ip not the router's IP!

Shutdown computer on command line

shutdown -i

Rebuild WMI database

Originated from SCCM client's error:
Setup was unable to create the WMI namespace CCM The error code is 80041002

There are several ways to clean/rebuilt WMI.
A) Simple rebuilt of WMI repository
This is the short version...
1. stop WMI service-> look up the command for that
2. rename the Repository subdirectory in %windir%\system32\wbem
3. rebuilt the WMI Repository in:
starting wbemtest.exe
connecting using Root/Default
The first connection will take some time since the repository is being rebuilt, but you should connect to a brand new repository afterwards

Additional info:
http://www.microsoft.com/technet/scriptcenter/topics/help/wmi.mspx


B) Complete reinstall of WMI
The steps generally include the following:
1. winmgmt /clearadap
2. winmgmt /kill
3. winmgmt /unregserver
4. winmgmt /regserver
5. winmgmt /resyncperf
6. net stop winmgmt
7. del %SystemRoot%/system32/Wbem/Repository/*.* /s
8. net start winmgmt
9. %SystemRoot%/system32/wbem/wbemtest.exe

Connect to file servers on a MAC

Follow these steps:

Click the Finder icon in the Dock.
Choose Connect to Server from the Go menu (see Note 1).
In the address field of the Connect to Server dialog, type the URL using this syntax (see Note 3):
smb://ServerName/ShareName/

smb://the ip address of your file server

Find out the RAM info without opening the motherboard

Download CPUZ
http://www.cpuid.com/cpuz.php

AC and DC

This is an image of the AC symbol.




This is an image of the DC symbol.










Things to bear in mind:
1) You will never plug a DC power pack to a AC device! Never MIX! In other words, AC goes with AC, DC power pack goes with DC device.

2) Voltages on the device and the power pack have to match. (eg: 12V on the device and 12 V on the power pack)

3) A stands for amperage, the amperage on the power pack must be greater than the amerage on th device otherwise you don't get enough power!

4) You look the output on the adaptor and the input on the device

5) Sometimes you need to look at the symbols to find out whether it's a DC or AC adaptor.


Examples:
Find a power pack for this Thin Client: input DC 12V 3.33A
Power adaptor 1: 4.5V 600mA -> won't match because 4.5V < 12V
Power adaptor 2: 12V 2.0 A -> 12V is ok but it won't match because 2.0A < 3.33A, the amperage has to be greater than the thin client's input amerage.

Answer: the power pack must have an output of 12V and amerage > 3.33A

Other things useful to know:
Most Adaptors (not all) are DC.
Car Batteries are DC.
1000mA = 1A
660mA = 0.66A
3.33A = 3330mA
AC stands for Alternating Current
DC stands for Direct Current
All the batteries in the wolrd are DC.
V= Voltage = pressure of the wire