Why my computer slows down when I use it for long hours continuously.

My C drive starts showing Low Disk Space and RAM usage is pretty high at those time.

What may be the cause of it?

Is there anyway that i can avoid it?

How can I know that about how much time my computer has been running. That is how much time has gone that I have shutdown my computer. Can I know this as sometimes my computer remains on for days and knowing the duration would be cool.

I know how to use BMOS setup, but I don't know how to enter the CMOS setup.

And how does it differ from BMOS setup.

Do you guys have any idea about this?

I was using internet at my school and when I tried downloading some files there. It tells me,you don't have permission.to download. What type of error is this? Is there anyway to solve this?

My computer don't start. it gives a beep sound. what is the problem of my computer?

Hey people, 

Today when I switched from some user accounts to my own user account on my computer and tried to run AutoCAD.

It always worked well but this because of the wallpaper changer which I installed to use my Flickr images as my desktop background? 

Please help me, as I can’t sort out the problem today it gave the following error:

I found articles over the internet that sustain the idea that it is possible to recover old data from magnetic supports that has been overwritten using magnetic microscopia method. Do you have any idea if this can be done?

What is the problem when the computer makes a series of beeps ?

i have a question that there is eject button in the context menu but i want to put insert button .Is it possible to do so?

Hi guys,

I am just bothered about my pc’s performance lately. It is taking me forever to open files and programs like Cad, sketchup and Photoshop. Every time I refresh it the screen will go blank for a while like 5 to 10secs. What seems to be the problem of my pc? I am really looking forward that someone can help me about this issue. I have deadlines to meet and my pc’s performance is making it impossible to finish my work.