Windows XP/SP2 wont install programs

By Conos
Jan 17, 2009
  1. I reformatted today, and then updated to SP2. When I did, firefox stopped working, so I tried to dl a new copy after uninstalling. When I tried to install firefox, windows first said
    "The publisher could not be verified. Are you sure you want to run this software?"
    (I downloaded it off of mozilla's website.)
    Then when I made it run anyway, it failed and said "File is corrupt".

    I had to update to sp2 because my sound drivers wouldnt work with sp1, now I cant install anything. Is there anything I can do about it?
  2. kimsland

    kimsland Ex-TechSpotter Posts: 14,523

    Run CCleaner
    Then try Firefox Download again
    The verify signature is ok just to say continue, it's actually in Right click My Computer, properties area (on of those tabs) to turn this off
    Actually Hardware Tab the "Driver Signing"
  3. Conos

    Conos TS Rookie Topic Starter

    When I try to download CCleaner, it gives me this error when I open the setup:


    Installer integrity check has failed. Common causes include incomplete download and damaged media. Contact the installer's author to obtain a new copy.
  4. kimsland

    kimsland Ex-TechSpotter Posts: 14,523

    Close all open applications, including Internet Browsers

    Start-->Run-> Cleanmgr -> ok
    Then press OK again

    After MS Clean Manager finishes cleaning, then try downloading and running CCleaner again

    If you have further issues, you can also try downloading the portable (no install) CCleaner from here:
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