Memtest needs to be allowed to complete at least 4 or 5 passes to be anywhere near conclusive and this can often take up to several hours and so is best left to run over night.
I note from your screenshot that you only have 15% of free storage space available on the boot (C:) drive, this can cause you problems, please see my canned text below;
Please note that in order to avoid data corruption and/or mechanical HDD failure for data only HDDs you must always have a minimum of 10% of the HDDs overall storage capacity available as free space and between and 15 and 20% of a HDDs overall storage capacity available as free space if the OS is on it, the free space allows for information to be copied to and from the drive efficiently.
Not having the above can render a computer inoperable if the HDD concerned has the OS on it due to the MBR (Master Boot Record) becoming damaged/corrupt, please see information @ http://pcsupport.abo...sterbootrec.htm
Are there any unused programs such as games that you no longer play stored on the C: drive, if so uninstall them to free up some space.
Please Run the PCPitstop.com OverDrive Full Tests
You must use your Internet Explorer for this procedure. (doesn't work so well in Firefox or others). If your machine is running Vista or Windows 7, you must Select IE to “Run as Administrator”. After completing PCPitstop OverDrive you can close your IE browser and re-open it Normally so that you are no longer running as administrator.
Go to: http://www.pcpitstop...pit/default.asp
Click on "Free Computer Check-up"
listed below PC Pitstop OverDrive
In the User Login - Click on "Sign up FREE!"
You'll need to submit a valid email address and create your own password, then click - Create Account(button)
Now enter your email address and password to Log in, Select - Scan this system Now!(button)
You will then be asked to download an ActiveX component and allow it to install.
It is safe and does not compromise your privacy.
Follow the on-screen prompts to install the ActiveX and to allow the Full Tests to be run on your machine.
The Full Tests take about 2 1/2 - 3 minutes on most machines.
When complete, a Results - Summary - Recommended Fixes will be displayed.
Please post the URL internet address, from your Results, back here into this Topic Thread so that we can review the configuration and present performance levels of your machine.
Note: During the graphics 2D and graphics 3D testing, your screen will display some rapidly moving objects.
If you are sensitive to visual flashing, it may cause dizziness. Therefore, look away from the screen during that portion of the testing.
After reviewing the results we will be more informed and may be able to provide better recommendations for you to work towards improving your machine's performance.
While PCPitstop does offer a variety of Paid Products, the PCPitstop OverDrive testing is FREE. Please ignore the references to Paid Products. We prefer to provide manual solution instructions that you can apply directly to your machine.
NB: An example of the url that we require and the information that it leads to http://www.pcpitstop...?conid=25271813