In my expirence this problem is almost always one of 2 things
1. Your ram needs to be replaced
- try and take out one chip at a time play with it for a bit and see if it freezes
2. Your hard drive is failing
- If this is the case you will hear above normal noises from your drive like excessive cracking and clanking. If this is the case back up your data as fast as possible, and pick up a new drive.
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Does the screen also freeze if you are using a mouse instead of touching the screen? If the freezing still occurs, then the problem is NOT the touchscreen. If it works OK with the mouse then you may need to have the touchscreen repaired. If freezing occurs even with the mouse the cause may be one of several. Right-click on the Windows taskbar and select Task Manager. The task Manager box tells you if your processor is working very hard (any reading that continues to hover near 100% indicates some program or process is overworking your system. Task Manager also shows a list of processes and how much cpu % each process is using. Another possibility is that to run everything you want may require more RAM memory. In general, 4GB or RAM is enough, but if you're running a lot of programs/apps at the same time then you may wish to boost your total amount of RAM to 8GB or more.
Your Dell laptop has low RAM/high CPU usage, a lot of games tend to use high CPU, so your laptop could be a little old for newer games, so you should upgrade it, or you have a lot of files on your laptop and maybe you opened to much high CPU usage programs.
Hard to tell without looking at it! First try cleaning it up in case its junk running thats making it freeze from lack of resources.
Remember that Norton and McAffee being famous are most likely to be targeted, try AVG for antivirus and for spyware/malware scanners try as many (reputable) ones as you can be bothered to go through, the trick is to use lots of different ones as some pick up what others dont.
If that doesnt work, you can try reinstalling the operating system, it could be corrupted system files. Make sure you put your data safe first!
If a streaming video takes a long time buffering from Youtube or another website, it's because your internet connection is slow. If your video freezes up and jitters, that might be your internet connection and/or the video card is working too hard.
Go to this website and run the speed test for the city closest to you and let us know what your connection speeds are (download/upload). This will help us determine if the problem is the internet connection speed or something else:
Laptops have very few moving parts. Your problem is more than likely either a fan or your hard drive. Remove the hard drive, start the computer up and just let it run for awhile. If the clicking noise never comes up then thats your problem. If it does, its probably a fan.
Disregard anything on the screen itself, just let the PC run. It sounds like after the hard drive has been spinning for a minute a motor starts to die.
If it were my laptop here is what I would do:
1. Install a new hard drive.
2. Install the operating system.
3. After an anti-virus program was installed and updated, I would connect the old hard drive to the laptop using one of those external USB hard drive adapter cables.
4. If the old drive proves to be readable, copy documents/photos/bookmarks to the new hard drive.
Hope this helps.