Many laptops and desktops don't have enough memory installed, or in other words, RAM. Not enough RAM is the most common reason why Windows operating systems, especially Windows 7, starts and works slow consistent. If there is not enough memory in the beginning of computer usage, it will work mediocre during the beginning. But, after a few weeks of use, when more and more software has been installed, there will be some signs of delays. Simply doubling the amount of memory in the computer system partially solves this issue.
The probability to have problems occur with installed software is actually very low. The probability that there will be a RAM failure is also very low, as RAM failures usually occur on systems which are three years old or more. Problems will show as the hard drive running slow. When there is a problem, I personally check the hard drive with GSmartControl with both laptop and desktop computers. To be honest, it is not easy to interpret GSmartControl data, so it is probably best to start with HDTune. If the system can still boot, install it and then check the hard drive surface. For some reason, no operating system has a tool used to check the hard drive, or a tool to monitor it.
To test the memory or RAM, start by using a bootable Memtest CD. Download Memtest from the internet to a good computer, and then burn it to a CD disk. Boot the computer from that disk, and then the test will start automatically. If you run Windows 7 on a Mac and want to test the memory, Memtest will not work since it does not work on Mac computers. If the memory test has returned with no fault, it is suggested to open the case first and then check for overheating elements. It is also advised to do some cleaning by checking the CPU heat sink and making sure it is clean and properly seated in place. If the system is more than 3 years old, I suggest taking out the CPU heat sink, cleaning off the old thermal paste, and applying a new one, silver color is usually best. Visually check all the capacitors located on the motherboard, do the tops look flat and shiny, or are they darkened and buff?
Check the temperature of all the components located on the motherboard. You might be able to just do it with your fingers, but do not ever touch the Power Supply Unit.
From my experience, if a component in the South Bridge is so hot that it is impossible to hold a finger on it, then most likely we are at the root of the problem. This is usually a design flaw, either by constant overheating, or this is the result of a failure located in the power circuit.
If nothing suspicious is found on the motherboard, then it is advised to do a system stress test. Some free programs to choose from include OCCT, Heavy Load, and paid QA+32Win. From my experience, QA+Win32 can point users in a very wrong direction. With OCCT, it is easy to use because if there is an error found, or if the system crashes, then this is a sign of a serious issue.
Virus infections can frequently cause system lags. The best solution to system lags is to run Malware Bytes, if possible on a working system, or to boot the system in Safe mode. Malware Bytes will be able to achieve the best results while still being able to run the system.
Since Windows 7 systems are still relatively new systems, there is less of a chance that this is a hardware fault. Most likely, there is not enough memory, or there is too many programs installed. For example, on some Sony computers, there is so many bloat ware systems installed that it is impossible to even play a simple game. To find out what is currently running in the system, use msconfig. Start by typing it in the search box.
Click the startup tab and then you will see what is loaded. Then click check or uncheck on the programs that will be started when the system starts. Click on the Startup tab.
Another reason for problems and stalls could be an antivirus software that has been installed. It is known that Norton Antivirus and MacAfee antivirus are very demanding in terms of system resources. Try to uninstall antivirus software if possible. But, before uninstalling, make sure that you have an antivirus license key saved somewhere, or better yet, write it down on a piece of paper.
There should be just one antivirus program installed on your computer. If there is two of these programs installed, it is best to uninstall one. In addition, two security programs can conflict even if they are doing different jobs. For example, Zone Alarm can conflict with Avira, and so on.
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