CPU usage always at 100%, PC practically unusable

Discussion in 'Windows Vista Performance' started by Tom Bowen, Jul 12, 2007.

  1. Tom Bowen

    Tom Bowen Guest

    Hi, I'd appreciate some help. :)

    HP Pavillion, AMD Athlon XP 2400+ processor, 2GB RAM, Vista Home Premium.
    The PC is three or four years old.

    When I got Vista, I only had 512MB of memory but I was able to run Vista
    pretty well even with Aero. I recently upgraded to 2GB RAM, which is
    recognized, and the problems seemed to begin shortly after, but I'm not sure
    they're related to the ram.

    While the PC is idle and after a cold boot, the CPU is now pretty much
    always running at 95-100%, while the RAM usage is at about 30%.

    I did some digging in the Task Manager and found some things that didn't
    look right.

    There are no applications running. (Windows) explorer is using about 89MB
    of ram while idle, but the Processes tab shows that there are 469,000 page
    faults, 1,264 I/O reads, 25 I/O writes and 35,000 I/O other related to
    explorer. I have the virtual memory set to let the system decide the size.
    I have a 2GB thumb drive running Readyboost at the system designated size.

    I know this PC can run Vista. I ran it for about three months without
    problems when I had only 512MB RAM. It was a little slow, but it was very
    usable. I don't have much software loaded, I only use MS office 2007 (the
    2007 trial version now, otherwise 2003), Outlook 2007 and IE7.

    The processor is so maxed out that the system is almost unusable. Lots of
    freezes and everything runs extremely slowly. I almost couldn't get to this
    site to post this.

    Please help. Thanks.
    Tom Bowen, Jul 12, 2007
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  2. Tom Bowen

    R. C. White Guest

    Hi, Tom.

    The first thing that comes to mind when this problem is mentioned is the
    Indexing Options. How long since you installed Vista? Indexing is supposed
    to run in the background and suspend operations whenever the human wants to
    type or otherwise do anything with the computer. But it sometimes slows
    things down, anyhow. This behavior usually goes on for just the first few
    days after Vista is installed, until the Index is built. Large drives with
    many GB of files to search obviously will take longer.

    Click Control Panel | Indexing Options and see what it says. If it says
    "Indexing speed is reduced due to user activity", then you know that it
    hasn't finished building the Index. When it has, this message will say,
    "Indexing is complete."

    Of course, that might NOT be the problem, but it's the first thing to check.

    R. C. White, CPA
    San Marcos, TX

    Microsoft Windows MVP
    (Running Windows Live Mail beta in Vista Ultimate x64)
    R. C. White, Jul 12, 2007
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  3. Tom Bowen

    Tom Bowen Guest

    Hi RC,

    Thank you for your reply.

    I checked the Indexing Options and it says, "Indexing Complete."

    Tom Bowen, Jul 12, 2007
  4. Tom Bowen

    Bob J Guest

    In Task Manager/ Processes in the column CPU is there any process indicating
    that it is constantly running - it will have a reading "01", you may have to
    watch it for a few minute. Select >Processes from all users.
    Most of them will show a reading of "00" which indicates they are not
    running at the time.
    The numerals indicate priority.
    Bob J, Jul 13, 2007
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