My Athlon, Win XP, 1GB netbook (and also my quad-core, HP, 200GB desktop media pc) have ongoing issues with: - slow boot time up to 5 minutes (!) to get to the Windows desktop, - slowness starting Firefox - and slowness/crashing Firefox - excessive buffering of streaming video of any resolution (HD or "low" quality) I have done: - Puran Utilities maintenance functions: chk disk, clean disk, defrag, registry clean, registry defrag - yesterday I removed Avast antivirus and disabled Macafee Site Advisor as a test. Performance improved! - firefox indicates "average" health - removed add-ons and extensions on Firefox temporarily - no improvement - Firefox is latest release - Java is working - Adobe Shockwave/Flash are current and working - Speedtest indicates broadband connection is good - excessive startup programs removed from system startup menu BOTH pcs have enormous hiberfil.sys files and SystemManager indicates initially they max-out resources when starting. How can I remove that file, without harming the system? I cannot disable hibernate/sleep on the XP (netbook) or on Win 7 Pro (the desktop) systems. Thanks for ideas.