How can I fix a computer when its lag?

Last night, I played online game while I'm playing I noticed that the was slow moving every time I moved the mouse and sometimes paused for a minute and then after a minute it will moved again. I cannot played well so what I did was I reboot my computer and wait for it to finished rebooting.

When its already I immediately open my game to played again. I thought it was okay already but while playing with it for about 30 minutes it suddenly paused again. I decided to turned it off. How can I fix my computer when its lag?

I have been cleaning up my computer, delete the unnecessary folder manually.

As I go through the C drive I’ve encounter unfamiliar folder NTLDR without any hesitations, I delete the folder.

At first the computer doesn’t show any error so I think that everything is fine, and I’ve done the right thing.

By the way,I’m using windows XP home edition. After a few hours of using the computer I shut it down.

Hello

I'm working on a new desktop with Windows 7 Home with 4 GB Ram and 320 GB HDD installed. I'm using a desktop application that apparently only working properly in Windows XP so I was told to try and use Virtual PC. The problem is Virtual PC cannot work properly in Windows 7 Home. 

I have tried to reinstall Virtual PC but still failed. I know for a fact my colleague use Windows 7 with Virtual PC so he can run the desktop application. What did I do wrong with the installation of Virtual PC. Is there any additional steps for installation or perhaps any workaround for the problem ?

Any suggestions and ideas are really appreciated.

Regards,

Jeff

Please, if anyone knows about my problem, feel free to post your answers! My computer automatically shuts down without any further notice. When I start the computer and reach the desktop, it takes only 5 minutes (as estimated the time) and shuts down, without any error message or even a warning prompt message!

Shutting down.

I just don't know what else to do.  I don't have any idea with regards to this problem. Please help me my computer is in danger. I think  I can't fix the problem as I don't know such troubleshooting issues! All I know is to surf the net.

Help please!

I freshly installed a new game I bought yesterday. After a successful installation I try to run it but I got this error message. I ask my friend to installed it to his computer to see if the error would still exist, luckily it work just fine. I try to troubleshoot it by myself but nothing works.

Here are the things I’ve done.

What’s going on with my windows task manager?

All the menu and the tab menu are hidden only the processes are shown don’t know what to do. I wasn’t able to change to another tab such as the Application tab.

I have been troubleshooting it by myself, but I failed. What would be the reason?

I thought it was the cause by virus or any malware, but my avast scanner doesn’t detect any threat.  My computer doesn’t show any error, all the programs seem to work fine.  I think I mis-configured something or deleted something.

I have a screenshot of my windows task manager, just take a look at it. Please someone out there help me.

This thing is always bothering me whenever I use the computer!

Drive C: and drive D: are my current drive file holder. All the files are saved there. I deleted some files due to the amount of data stored in my drivers. The computer always warned me about 'Low disk place" icon on the system tray;

For three years that I've been using with my laptop computer the message above with S.M.A.R.T occurred few weeks from now.

As anyone does with their computers like internet surfing, software installations, upgrading drivers and booting are done as my system routine. Scanning the drivers and restoring the factory settings.

But I have noticed this message every time I turned on and start the computer before the Windows logo is loading. At first i took it for granted but lately i started to get worried.

What is S.M.A.R.T doing with my laptop? If this message-alert will not take for an action what happened to the computer?

It all happened when I do dual booting. (Windows XP and Windows 2007)

This prompted a message appeared when i started the computer after booting. 

Locading Operating system …

DISK BOOT FAILURE, INSERT SYSTEM DISK AND PRESS ENTER

Hi

I have an old a desktop with Intel Pentium 4 ( not core duo or core 2 duo just plain old Pentium 4 ) with 1GB of RAM installed and 80GB HDD placed inside of it. I installed Windows XP Pro 32 bit with Microsoft Office 2003 but several days ago I tried installing Office 2007 trial by choosing upgrading options from Office 2003. 

The installation works fine without any problems whatsoever. Unfortunately,I found out after installation that my desktop runs very slow every time i tried to open Outlook 2007. Outlook 2007 manage to migrate the Outlook settings from the 2003 version but it's very slow. I tried to access inbox, sent items and it takes several minutes to actually open the folder.