My Good Friends on the Forum, I hope this is the proper place to post since Avast is being discussed. I have the industrial strength Avast, Windows XP Professional, 32-bit, SP3, Firefox V. 15, 75GB hard drive only using about 15%, shoe size 11w. When running a scan it starts out rear wheels smoking, front end up like a AAA dragster. Then it slows down to lower k's in speed then raises and lowers to painfully slow speed. Is there some particular reason for it acting this way? Rather annoying as I have to keep an eye on CPU temps constantly. Thanks so much for any help with this and a good day to all. Warlock
Here are the things you need to check to see which is causing it:
- Dust > With the PC off, blow the dust from around the CPU/GPU/PS/Case while locking the blades with a Q-tip to prevent over-RPM
- Free Space > If low, free up space. This can cause it.
- Files > Thousands of files can cause problems. Offload to an external drive, if possible.
- Fragmentation > Defrag your drive.
- RAM > Low RAM can cause overheating, as the HDD is being used as V-RAM. Upgrade to more, if needed.
- Hardware Err > Sometimes, if chkdsk or other utilities cannot fix the problem, a re-install really IS the only way to fix this.
- Malware/Rootkits > Rootkits are especially prevalent these days. These are really hard on a computer & can cause overheating & bluescreens.
- Programs > Too many startup items can bog a system down. Especially SLOW or single-core CPU/No or slow GPU/Not enough RAM.
- Antivirus > Some people install 2 or 3, then forget they conflict with each other & cause slowdowns/problems. Also, if your not using Norton + Mcaffee + Avast, etc.... (are you sure you only got ONE of them installed?) then try uninstalling Avast & using AVG free. Sometimes a different A/V can make all the difference on a machine.
- Internet Explorer > As 8 is all you can use on XP, unless you have the older 9 preview they came out with for XP years ago as a test release (since pulled, and claiming it is impossible) then 8 is all that you can get. Firefox is perhaps the fastest browser you can get on XP, especially if you enable hardware acceleration by updating to the latest video driver.
- PIO > Subsequent consecutive errors can cause Windows to drop drive speed until it operates in PIO mode, which is MUCH slower than DMA. Uninstall that drive's controller & reboot to let Windows re-install it & re-enable it.
- Updates > Some Windows updates can cause a computer to crawl. Perhaps you let Windows auto-update & put whatever it wants? What good is a brick you can't use?
- Drivers > Update your drivers.
- BIOS > If you are knowledgeable to do this, turn off all A/V on your computer after downloading the correct model from the Manufacturer website of your computer, flash the BIOS, and it may help. I have seen a BIOS flash on older computers be the difference in blue-screening when trying to install XP, & being rock solid with XP.
Let me know if any of these fix your problems, or if you need additional causes.