I have a Dell Inspiron 1501 laptop that’s about 2.5 years old. It has a 60GB hard drive, Mobile AMD Sempron Processor 3500+ 1.79 GHz, 448 MB of RAM.

Last week my laptop just started to lag when I type, like it takes anywhere between 1-5 seconds for the thigs I type to show up on the screen. This includes word processing, chatting, internet explorer, etc. Around the same time I also noticed that my laptop was taking 5-10 minutes to notice when I plugged things into my USB drive like my mouse, digital camera, or webcam. Since then, here are all the things I’ve tried to correct the problem.
-Do a system restore to a time a few weeks ago before the priblem began.
-Ran avast free antivirus software
-Ran antivir free anitvirus software
-Ran tweaknow registry cleaner
-Ran superantispyware free edition
-Ran malwarebytes anti-malware free edition
-Defragmented the hard drive
-Checked the C drive for errors using windows
-Deleted my temporary internet files
-Tried to free up space on my hard drive using the windows tools
-Went through the control panel and uninstalled any software I don’t use
-Went to the task manager and saw what was running and googled anything that looked suspicious, but I’m not very computer savvy so I’m not sure how successful this was.

I’m a medical student and this makes it VERY hard to take notes on PowerPoint during lecture. Everything is functional, but very slow and annoying.

One of the cooling fans in my laptop (Dell Inspiron 8600) speeds up and gets very loud, it seems only to happen fairly randomly, but often. When this happens my video frame rate is extremely slow. The problem fixes itself when I restart my computer, but then happens again, randomly. Anyone know what I can do to fix this, or why this keeps happening?

I have a dell inspiron e1505 with windows xp.
Looking for software and the best place to get it.

Here is my situation. I was surfing the web on my two year old Dell Inspiron 1521 laptop with Windows Vista when the computer froze and locked up. I could not click on anything or do anything. I restarted the computer. As it restarted the Windows Startup Repair window came up. It scanned my computer and found errors that it could not fix automatically. It told me that there was no operating system installed. I went online and troubleshot the computer as best as I could. I did not want to lose the information on my hard drive so I went out and bought a new one and installed Windows Vista on it. After two months, no problems. I ordered a case and USB connector for the old hard drive. When I plugged it in to the computer and looked inside the files I was stunned. All the files under my username were gone. Windows said the folder was empty. How could this be? I found data recovery software that scanned my old hard drive and was able to recover all my files. The files were only lost; they were sitting on the hard drive but could not be accessed except after the data recovery software did its job. I have been trolling the web looking for answers. Can anyone explain why or how this could have happened? What can be done to prevent this from happening again?

I have a Dell Inspiron 1520 laptop. My antivirus software was Symantec. Last night, i uninstall Symantec and installed Trend Micro Internet Security. The installation completed successfully. Than I tried to do the updates for Trend Micro and after about 15 minutes of updating, an error message came up saying it’s not finish updating and can’t update or something like that. Than suddenly, the screen went gray. I tried rebooting and it kept pushing me into safe mode and I had to run a repair but nothing is working. Every time I start the laptop it goes in that safe mode and wont even let me get on. I took it to Best Buy for a diagnostic (waiting for response) but wanted to know if this has this happened to anyone??????? Do you think it’s hardware or software??