These two systems (Windows 7 and Vista) have built a tool named (Memory Diagnostic Tool), no need to Memtest to check for errors on the RAM on your PC.
To access, right-click on “Start” (Windows logo).
Go to Administrative Tools, if the Start menu!
Otherwise go through the “Control Panel”.
You can also access the Run command in MdSched
Make a click on the tab (Windows Memory Diagnostic)
Once the tool is open, there are two possibilities that present themselves!
The first proposal is recommended for automatic rather than the second, which itself is manual.
For the first proposal automatic restart will be directly and immediately run diagnostics.
This is an overview of the diagnostic
The diagnosis will be in two episodes.
Waiting is the end of the test and see if the ratio is zero or positive.