Windows.XP.in.a.Nutshell.1002005.2Ed [Electronic resources] نسخه متنی

H.3. Installing a Service Pack

Once you've
taken the steps outlined above, actually installing a Service Pack is
surprisingly easy.

If you are installing Service Pack 2 on a laptop computer, make sure that the batteries are fully charged or the unit is plugged in to the AC before beginning the update. The last thing you want is for your computer to power down halfway through.

The simplest approach?
Fire up Windows Update and let it do the job. If your Service Pack
comes on a CD, just pop it into a drive and likewise sit back. If
you're using the downloaded version, simply run the
file.

Once the installation has finished, your system
will reboot. When XP loads up, you'll be in front of
your familiar desktop, ready to carry on computing as normal. In the
event of trouble, well, that's why you made backups!

H.3.1. If Something Goes Wrong

The procedure to recover your PC from a failed Service Pack
installation depends on the severity of the damage.

In most cases, the Service Pack will install successfully, but you
might find that one or more of your programs stops working. In most
cases, this is due to tightened security (see the discussion of the
Windows Firewall that comes with SP2 later in this appendix for
details). To correct the problem, you may have to create an exception
in the Firewall or disable the Firewall altogether. Or you may simply
need to change some settings in the application or get an update from
the manufacturer. If that doesn't work, and you
can't live without the functionality lost with the
new Service Pack, you should be able to uninstall it by going to
Control Panel Add or
Remove Programs.

The other common scenario is that the Service Pack installation
won't even begin, typically due to insufficient disk
space (discussed earlier) or an invalid product key. Each of
Microsoft's Service Packs contain slightly different
anti-piracy features, so if a Service Pack won't
install, you'll need to contact Microsoft or the
manufacturer of your PC to obtain a new product key or certificate of
authenticity.

In the unlikely event that a Service Pack renders your system
unusable, you'll join the ranks of Windows users who
have come to loathe the term "Windows
Update." In this case, it's likely
your only option is to reinstall the original release of Windows XP,
and then, if necessary, restore any data files and reinstall
applications as needed.