How to Fix Windows Freeze

1. Remove malware or malicious programs that may have entered your computer and that are causing these freeze-ups. Click on the Start menu and select 'Run...' Type (without the quotes) 'MRT' and press 'Enter' to launch a built-in Windows program called 'Microsoft Malicious Software Removal Tool.' Click 'Next' when the program launches. Choose 'Full Scan' and follow the on-screen prompts to remove any malware that may be causing problems.
2. Use 'Disk Defragmenter' to rearrange files on your hard disk and make them more contiguous. Locate the menu command under the 'System Tools' folder under 'Accessories' in your Start menu. Click on 'Defragment Now.' Select 'Defragment.' This process may take a long time to complete based on the amount of fragmented files in your hard disk.
3. Use 'Disk Cleanup' to eliminate unnecessary processes and programs that may be causing the freezes. You can access this tool under 'System Tools' folder under 'Accessories.' This tool scans your hard disk and creates a list of all the items (including programs and processes) that are unnecessary or unused. Place a check mark next to the ones that you genuinely do not use and select 'OK.' Click 'Yes' to confirm.
4. Reduce multitasking. Multitasking slows down your computer and even results in freeze-ups. To reduce multitasking, close down unused windows and programs. Right-click on the unused or unwanted quick-launch icons in the notification area of your task bar (next to the clock) and select 'Exit.'
5. Use an antivirus program to scan your computer at least two to three times a week. If you do not have one, download one immediately. Norton, AVG and Avira offer free downloads and trial versions (see Resources).