Sam said:
I was having some niggling problems with my PC, especially slow
speed - even just deleteing a small doc would take noticeably
longer than it used to. So, I formatted the hard drive,
clean-installed Win XP from a CD, upgraded to SP2 (downloaded from
MS website) and loaded a minimum set of drivers. But the machine is
still slow, and some even slower than before the re-install - e.g.
opening apps, displaying folders in Windows Explorer, IE 6 is very
slow (ISP confimed that internet line performance is the same as
before). I* have only loaded Avast antivirus and MS Office 2003.
Have 1 gb mem.
What is the make and model of this PC? What are its specs? XP Home
or XP Pro? Is it on a network? Did you try configuring a Clean Boot?
Instructions for Clean Boot:
http://support.microsoft.com/kb/310353
Have you tried hardware troubleshooting?
Sam, here are the typical (software-related) causes of sluggishness:
1. Malicious software (malware). Noramlly, this should be ruled out
first! This page has excellent information:
http://www.elephantboycomputers.com/page2.html#Viruses_Malware
[Then again, if you have just completed a Clean Install, that's
probably not your problem.]
2. Certain programs that are designed to combat malware (e.g., Norton
and McAfee). Ironically, they can slow things down because they
simply use way too many resources. Sometime they cause conflicts
with other programs. And their default mode is to scan your entire
hard drive each time you boot up. Fortunately, there are other
antimalware programs available that use far fewer resources (e.g.,
NOD32, Avast, and Avira).
[Again, since you are running Avast, the above paragraph probably
doesn't apply to you, either.]
3. Too many of certain types of programs always running in the
background -- with or without your knowledge.
First, run Task Manager (Ctrl+Alt+Del) and see write down the names
of all the running processes.
Them, use these sites to determine what these programs are and to
learn how to configure them not to always run at startup:
http://www.pacs-portal.co.uk/startup_content.php#THE_PROGRAMS
http://www.bleepingcomputer.com/startups/
http://www.answersthatwork.com/Tasklist_pages/tasklist.htm
Sometimes it is recommended to use msconfig to configure the
programs to not run at startup. A better, more thorough program is
Autoruns:
http://technet.microsoft.com/en-us/sysinternals/bb963902.aspx
But before you do this, you should use the preference settings of the
program in question. Otherwise, for some programs, they will return
to the startup list anyway!
4. Not enough RAM, which causes the PC to overly rely on the
pagefile. A quick way to determine if this is happening is to open
Task Manager (Ctrl+Alt+Del) and click the Performance tab. Then note
the three values under Commit Charge (K): in the lower left-hand
corner: Total, Limit, and Peak.
The Total figure represents the amount of memory you are using at
that very moment. The Peak figure represents the highest amount of
memory you used since last bootup. If both these figures are below
the value of Physical Memory (K) Total, then you probably have
plenty of RAM.
In case you want to explore this further, you may run Page File
Monitor for
Windows XP:
http://www.dougknox.com/xp/utils/xp_pagefilemon.htm
[Once more, if you have 1 GB of RAM and if you are not running
memory-intensive programs, not enough RAM is probably not your
problem.]
5. You might also want to check that your hard drive's access mode
didn't change from DMA to PIO:
http://www.technize.com/2007/08/02/is-your-hard-disk-cddvd-drives-too-slow-while-copying/
and
http://users.bigpond.net.au/ninjaduck/itserviceduck/udma_fix/