You are in the middle of doing your work, suddenly you realized your computer hanged up. But the problem is, you have not saved your work! Dont panic! There is a solution for that! And you can surely save your file! Heres how:
1. Click on ctrl-alt-delete keys. The windows task manager will then open, click on all programs that you dont need and end the task. You will see that all programs on your taskbar will close one by one. If this will resolve the issue! then save!
2. If it did not resolve the issue, are there some users logged on that computer? If so, go to switch user (for XP) and log off that user, go back to your log on screen and log on again. The reason the computer hang up is because if there are many open programs and applications, these retains in the memory, if it is too much for the memory to handle, it freezes! Another reason too the computer hang up is because if you are connected to the internet via dial up, and you are running too many applications and opening many websites. So I suggest, if you are multimedia user or a heavy internet user, then you are better off with a higher memory, at least 512Mb of memory. There are simple ways to avoid computer to freeze or hang up. Details Increase Virtual memory on your PC & Solve the Low Memory problem
3. Clean your history at least once a week Go to tools>internet options>clear history. I normally set my history to 0, meaning, So that when I restart my computer, it doesnt save history pages that I have visited.
4. Delete all internet temporary files >tools>internet options>delete files (do the offline content too!)
For 3 & 4 Read Keep You PC Clean and Error Free with CCleaner
5. Delete cookies (some do not do this, but I do delete cookies at least once a week!) >tools>internet options>delete cookies
6. Remove unnecessary programs that you no longer use, they are just occupying space and memory! >control panel>add/remove programs
For Advanced Level Uninstallation Read How to Remove/ Uninstall Software Completely ?
7. Do defragmentation at least once a week >point the mouse to start button, then right click explore>right click the mouse pointing to drive C (which is usually the main system logical drive) >properties>tools>defragment now
In Case if you want so save some time see How to Defragment Files Instead of the Whole Drive
8. You can also check the logical drives volume for errors >point the mouse to start button, then right click explore>right click the mouse pointing to drive C (I repeat, is usually the main system logical drive) >properties>tools>check now
Another Problem you might Face is your PC’s Hard Drive is not Opening or Responding with Double-Click
9. It is better to have only one user being logged on. Even if there are many users, make sure the user logs off after using the computer, rather than keeping it logged on and you do the switching of users. Switching users is good as long as you dont keep all users logged onI think that is more logical. Also See How to Easily Boot Windows In Safe Mode ?
10. Always shut down properly the computer (do NOT use the power button when turning it off) Tip : How to – Automatically Shut Down PC / Vista on Pressing Power Button