Create hidden user accounts

You can prevent an account from appearing on the Welcome screen, thereby creating a "hidden" account. (It's not completely hidden, because the account is visible to administrators in Local Users And Groups and the account's profile in the Documents And Settings folder is visible to all users.) Use Registry Editor to open HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\SpecialAccounts\UserLis t. Create a new DWORD value, setting its name to the user name of the account you want to hide and leaving its value set to 0.

But be careful with this trick: you won't be able to get to the account with Fast User Switching because the account doesn't appear on the Welcome screen. Pressing Ctrl+Alt+Delete two times at the Welcome screen to display the Log On To Windows dialog box works only when no other users are logged on. Therefore, if you want to use this type of hidden account, you should either disable Fast User Switching or resign yourself to using the account only when no one else is logged on.

Save Help Topics as Shortcuts

Because the Internet Explorer engine is at the heart of the Help And Support Center, each topic has its own URL. If you know how to manipulate these URLs, you can save a specific Help topic as an external shortcut. Using that shortcut, you can jump directly to a specific topic without having to go through the Help And Support Center first. Unfortunately, Windows XP does not let you create a shortcut to a Help topic directly. To do so, follow the process outlined below:

Open the topic for which you want to create a shortcut, right-click anywhere on the page (except on a link), and choose Properties.
Select the entire URL from the Address field (be sure to scroll down to select the full address).
Press Ctrl+C to copy it to the Clipboard.
Right-click the desktop (or in a folder where you want to save the shortcut) and choose New, Shortcut.
In the Create Shortcut dialog box, type %systemroot%\pchealth\helpctr\ binaries\helpctr /url followed by a space, and then paste the copied URL.
Click Next, give the shortcut a name, and click Finish.
Shortcuts you create in this fashion work with URLs in two common Help formats:

The Help Center Pluggable protocol (with the prefix hcp://) is less common and is typically used for Help topics that link to external applications and locations, such as Remote Assistance or Windows Newsgroups.
HTML Help protocol (with the prefix ms-its://) is used for access to information in Compiled Help (.chm) files. If you just want quick access and don't mind opening this type of URL in the Windows 2000-style HTML Help viewer, you can use the Hh.exe Help engine. Open the Create Shortcut wizard and type hh followed by a space and the Help topic's URL. The resulting shortcut opens the selected topic in a window that lists only topics from the same Help file.

Check your driver versions with these tips

How do you know whether a downloaded version is newer than the currently installed driver on your system? A good Readme file should provide this information and is the preferred option. In the absence of documentation, file dates offer some clues, but are not always reliable. A better indicator is to inspect the properties of the driver files themselves. After unzipping the downloaded driver files to a folder on a local or network drive, right-click any file with a .dll or .sys extension and choose Properties. On the Version tab, you should be able to find details about the specific driver version, which you can compare to the driver details shown in Device Manager.

Get a close-up of CPU usage

Double-clicking anywhere within the Performance tab—on the graphs themselves or the surrounding matter—removes everything but the CPU Usage and CPU Usage History graphs, allowing you to see more detail without expanding the window itself. With the window thus altered, you can resize the display and keep it on top as you work. To move to the Processes or Applications tab, press Ctrl+Tab. To return Windows Task Manager to its normal display, double-click again.

Keep track of your all your XP updates

If you have Windows XP set up to perform automatic updating, you can keep tabs on the changes made to your system by examining the Windows Update.log file, which you’ll find in the %SystemRoot% folder. You can also review your Windows Update changes by going to the Windows Update site (select Start, All Programs, Windows Update) and clicking the View Installation History link.

Controlling StartUp with Boot.ini switches (explained)

The ARC path syntax supports more than 30 different switches that enable you to control various aspects of the Windows XP startup (or another operating system, as long as it’s Windows XP, Windows 2000, or Windows NT 4). You can either enter these switches by hand when editing Boot.ini in Notepad, or use the check boxes on the BOOT.INI tab of the System Configuration Utility. Here’s a summary of the switches that are most useful:

/safeboot:minimal Boots Windows XP in safe mode, which uses only a minimal set of device drivers. Use this switch if Windows XP won’t start, if a device or program is causing Windows XP to crash, or if you can’t uninstall a program while Windows XP is running normally.

/safeboot:minimal(alternateshell) Boots Windows XP in safe mode but also bypasses the Windows XP GUI and boots to the command prompt instead. Use this switch if the programs you need in order to repair a problem can be run from the command prompt or if you can’t load the Windows XP GUI.

/safeboot:network Boots Windows XP in safe mode but also includes networking drivers. Use this switch if the drivers or programs you need to repair a problem exist on a shared network resource, if you need access to e mail or other network-based communications for technical support, or if your computer is running a shared Windows XP installation.

/safeboot:dsrepair Boots Windows XP in safe mode and also restores a backup of the Active Directory directory service (this option applies only to domain controllers).

/noguiboot Tells Windows XP not to load the display driver that normally is used to display the progress bar during startup. Use this switch if Windows XP hangs while switching video modes for the progress bar, or if the display of the progress bar is garbled.

/bootlog Boots Windows XP and logs the boot process to a text file named Ntbtlog.txt that resides in the %SystemRoot% folder. Open Ntbtlog.txt. in Notepad, move to the end of the file, and you may see a message telling you which device driver failed. You probably need to reinstall or roll back the driver. Use this switch if the Windows XP startup hangs, if you need a detailed record of the startup process, or if you suspect (after using one of the other Startup menu options) that a driver is causing Windows XP startup to fail.

/basevideo Boots Windows XP using the standard VGA mode: 640 × 480 with 256 colors. This is useful for troubleshooting video display driver problems. Use this switch if Windows XP fails to start using any of the safe mode options, if you recently installed a new video card device driver and the screen is garbled or the driver is balking at a resolution or color depth setting that’s too high, or if you can’t load the Windows XP GUI. Once Windows XP loads, you can either reinstall or roll back the driver, or you can adjust the display settings to values that the driver can handle.

/sos Displays the path and location of each device driver (using the ARC path syntax) as it is loaded, as well as the operating system version and build number and the number of processors.

/maxmem=MB Specifies the maximum amount of memory, in megabytes, that Windows XP can use. Use this value when you suspect a faulty memory chip might be causing problems.

/numproc=n In a multiprocessor system, specifies the maximum of processors that Windows XP can use. Use this switch if you suspect that using multiple processors is causing a program to hang.

/pcilock Tells Windows XP not to dynamically assign hardware resources for PCI devices during startup. The resources assigned by the BIOS during the POST are “locked” in place. Use this switch if installing a PCI device causes the system to hang during startup.

/debug Enables remote debugging of the Windows XP kernel. This sends debugging information to a remote computer via one of your computer’s serial ports. You can also add any of the following switches:

/debugport=port Specifies the serial port, where port is one of com1, com2, com3, com4, or 1394. Specifying 1394 will require that you also use the /channel switch.

/baudrate=speed If you use a COM port, use this switch to specify the transmission speed of the debugging information, where speed is one of the following: 300, 1200, 2400, 4800, 9600, 19200, 38400, 57600, or 115200.

/channel=number If you use an IEEE 1394 (FireWire) connection, use this switch to specify the channel, where number is a value between 1 and 64.