Well, decided to do something that i thought of earlier which i now wish i had done much soooooner as it were, i don't know if this is the final answer but i noticed that on start up when pressing F5 at the ASUS boot screen with the Windows 7 install disc inserted into my dvd-rom drive that there was a memory diagnostic tool.
I had thought of testing each stick one at a time and so i did, basically i inserted just one of the RAM sticks and ran the memory diagnostic, no errors found, ran then with 2 x 2GB sticks, no errors found, then took the second stick out and tried one of the others......
Almost straight away the diagnostic said that there were hardware issues.
Dud RAM!!
Then tested the last stick and this too had no errors, so i then inserted all three good RAM and ran a full standard test using the diagnostic and with the 6GB RAM installed all seems well according to the diagnostic.
Thing is, i know i had some dud RAM but what from there? Are my other errors all related to this??
I really don't know, i am worried that maybe a virus got on while i was without internet security, i have had bad pool header and non page file errors too, i am not sure what these are at all??
Also do i now attempt a clean install of windows 7 or simply a repair? there does seem to be good motive for both??
Thanks for all your help,
The elevated cmd, i am not sure about, i tried the sfc/scannow and it wouldn't allow me to do it.
I am running Home Premium Win 7 64 bit.
If it is a virus will the repair option get rid of it?
If there are still driver issues, how do i sort these out without risking further random crashes?
Should i just clean install........ i ponder!