Fix a slow computer

If your computer seems to have slowed down for no obvious reason you may like to try some or all of the following troubleshooting steps using free or trail programs.

Note: Some steps are recommended for the experienced only.

  • Uninstall any unused programs you may have installed over the years
  • CCleaner: Clean out the temporay files, as most minor infections tend to reside there. Also turn off any unnecessary startup programs under tools
  • TDSSkiller: Make sure there’s no TLDx rootkit. ie. Programs which mask malware
  • Malwarebytes Anti-Malware: Do a full scan, fix all
  • Superantispyware: Do a full scan, fix all
  • Run a full scan using your installed Antivirus, you do have one dont you?
  • Hitmanpro: Do a scan to see if there’s anything left. It’s also useful software to find any hidden proxy settings
  • HiJackThis: Can be used to find obscure issues. Copy and past the log to this to check for nasties – Take care!
  • Check for disk errors. WindowsKey-E > Right click C: > Properties > Tools > Check
  • Check spare disk space. WindowsKey-E and check Local Disk C: Free amount
  • Check for errors using the event viewer in the control panel
  • Note: Scanners could be run in safe mode if removal fails
  • Finally check the CPU and RAM usage using Ctrl-Alt-Del > Task Manager

Check for any windows updates. If updating this broken see the following.

  • Download and run Microsoft Windows Update Troubleshooter
  • Check your router is not blocking activex
  • Add trusted sites: http://*.update.microsoft.com, https://*.update.microsoft.com,  http://download.windowsupdate.com
  • Check WindowsUpdate.log in the %windir% folder

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