When you change motherboard or faulty network card, Windows will reinstall all drivers for all new found devices even they are same hardware. For network card, the system will add #1, #2... at the end of the device to distinguish between the new device and the new device. You cannot rename it or reset it. Left it like this not only you feel strange on the system. In some application, you even face some trouble. For example, in Virtual Box, you have to recreate all virtual device otherwise the network of the virtual client won't work.

In windows, the system will read the hardware clock as local time by default. To change the hardware clock so that it is stored in GMT timezone. We can edit registry using regedit:

add the following key
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\TimeZoneInformation\RealTimeIsUniversal

DWORD: 1

UPDATE: Just found that when the IDEOS is connected, a 7M drive with title "Mobile Partner" will be mounted to the computer that contains the device driver of the phone. So just install the driver in the folder will be fine.
If you want to use IDEOS as a development device, you will find that there is no device driver for this phone even you update the android SDK to the latest version. The IDEOS actually works on MacOSX or Linux as a development device.

If you've installed java in your Windows, the java will automatically run an auto update periodically. If you are using Vista or Windows 7, the annoying UAC will prompt you every time when the system try to run the auto updater. To disable this, edit the registry:

[HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Update\Policy]
"EnableAutoUpdateCheck"=dword:00000000

Ref: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6294083

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One of my computer with Excel 2007 installed under Windows Vista. The problem is that whenever I close or save any excel file, the Excel application will crash completely. After google the solution, the following change in registry fixed the problem.

1. Start -> Run -> Regedit.exe (start regEdit to edit registry)
2. HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\Excel\Addins\BtOfficeAddin.BtOfficeIntegration.1
3. Change value loadbehavior from 3 to 0


The change is to disable one addin in excel.

After installing windows 7 beta, you will see a link at the top right of every windows:

In order to hide this link, we can regedit the following registry:

HKEY_CURRENT_USER\Control Panel\Desktop\FeedbackToolEnabled = 0

Originial value in my Windows is 3.

Vista has hibrnate function disabled, to enable it:

powercfg /hibernate on

And then you can find the hibernate option on shutdown menu and control panel.

After installed Windows Vista SP1, the sytem will stored old system files so that you can revert to old version of Windows Vista. In case you won't do any revert, you can run the following command in command prompt to free up about 1G of disk space.

vsp1cln

NTFS will enable journal system be default, that will increase the number of write actions to the disk. It is not good for eeePC because the limited life cycle of the SSD and the slow write access of the SSD. So it is better to disable journal system, by the following command:

fsutil usn deletejournal /d c:

We can also disable timestamp for last access of file by:
fsutil behavior set disablelastaccess 1
that is similar to set noatime in Linux, so that it will further reduce the number of write access to the SSD disk.