Tài liệu Preparing for Registry Editing docx

Preparing for Registry Editing

If you're a system administrator or technical-support specialist, you're certainly able to

provide many examples of situations where users called for technical support when

encountering registry problems. Sometimes (fortunately, this case isn't common), the user

encounters registry-corruption problems before he or she can start Windows for the first

time. Registry corruption is especially likely when inexperienced users modify the

registry, because they often set incorrect values or even delete necessary keys. All these

actions result in registry corruption.

Before proceeding any further, it is recommended that you study alternative methods of

modifying the registry and various techniques for registry backup and recovery. There are

several alternative methods of editing the Windows NT/2000, Windows XP, and

Windows Server 2003 registry that you can use to solve the problem or configure the

system parameters. Some of these methods were described in Chapter 1. Some Internet

resources provide various tips on solving problems, using complicated registry-editing

procedures. Users with a sound knowledge of the functionality provided by newer

releases of Windows may find simpler and, at the same time, more elegant solutions,

since most problems can be solved using Control Panel applets and other administrative

utilities.

Caution If you make an error while modifying the registry (for example, by setting

incorrect values or deleting vital registry entries), you may prevent the system

from booting. Whenever possible, modify the system configuration using

Control Panel applets or other administrative utilities. Registry editor should be

used only as a last resort. System administrators may wish to restrict user access

to the registry in order to protect the system configuration. This topic will be

discussed in detail in Chapter 9.

So, you need to open the registry and solve your problems by modifying it. This is a

normal situation and you'll probably edit the registry directly. Some methods of

configuring and troubleshooting the system, discussed later in this book, do require direct

editing of the registry.

However, before you go any further, you need to back up the registry. Registry backup is

the first thing that should be done before you begin editing the registry. Never start

editing the registry without backing it up. Everyone makes mistakes, and registry editor

(which will be discussed in the next chapter) doesn't have the Undo command that is

present in most programs. Don't create unnecessary problems for yourself (unless this is