I have a very slow laptop. I am sure that it is very clean.
Exactly what makes you so sure? The most common cause of slowdowns
these days is malware infection, even on those computers whose owners
think they are clean. What anti-virus and anti-spyware programs do
you run, and are they up to date?
Besides the malware issue, issue the following questions:
The second most common cause of performance problems is
performance-robbing programs running in the background. What programs
do you have starting automatically?
What is your hardware configuration? What processor and how much RAM
do you have?
What applications do you run? Has it always been slow, or is this
something new?
Is it slow doing everything, or just some things? What things?
What changes did you make prior to the slowdown? What new software has
been installed?
However, I
suspect that over the years the Registry may have suffered a 'bump' or two.
Registries don't get "bumps." The thought that the registry gets
filled with clutter, resulting in a slowdown, and needs to be cleaned
periodically, is false, although many people unfortunately believe it.
If the reason for the slowness was there,
It almost certainly is not.
would an upgrade from XP Home to
XP Professional make sure that any problems withe registry and other parts
of the system would be totally solved?
No. Emphatically no. An upgrade from Home to Professional is the
easiest and most likely successful of all possible upgrades, since so
little has to be changed. But the one time when any upgrade is least
likely to be successful is when you are experiencing problems. An
upgrade to a problem-ridden computer is most like to exacerbate
problems, not solve them.
You should upgrade to Professional *only* after your problems are
solved, and *only* if you are sure that there's some benefit to you in
doing so. Are you aware that XP Home and Professional are identical
except that Professional includes a few features (mostly related to
security and networking) missing from Home? Most home users don't need
and would never use these extra features and will see no benefits by
upgrading.
For details go to
http://www.winsupersite.com/showcase/windowsxp_home_pro.asp
http://www.microsoft.com/windowsxp/whichxp.asp>
http://www.microsoft.com/windowsxp/home/howtobuy/choosing2.asp
Also note another point, not included in any of the above:
Professional allows ten concurrent network connections, and Home only
five.