multiple issues system corrupting

Hi all,
I have got a windows error 7 14001.
I noticed weird things yesterday after I downloaded latest windows
updates 98 meg worth 2 days prior. Itunes brings up 14001 error 7,
mailwasher keeps wanting to close on opening, and I get repeated pop ups
saying lan connected and then unplugged.
I recently reinstalled endnote 14 after using clean up which appears to
wipe the program from word.
My internet searches don't seem to help me much.
I am using windows xp service pack 3.
I have reinstalled Itunes and it says successfully installed but does
not open repeating the 14001 error 7 message.
Will cleaner remove dll files that are sometimes needed to run
applications.
I have also had issue with power point saying files are corrupted and
needs to open in safe mode. these are uni files and safe.
i reinstalled mailwasher today and now it won't open at all.
My machine is also running really really slow.
I have scanned with nod 32. antimalware bytes super anti spyware and did
a kaspersky online scan.
all not revealing anything major.
need some help.
i also closed my kids accounts on the machine and so this is all i have
done different in the past few days.
kevin

Reply 1 : multiple issues system corrupting

I want more clarification.

Reply 2 : multiple issues system corrupting

With multiple problems like this the first step is to see if Windows' own System Restore will take your system back to where it was before all this happened.

System Restore is in the Start menu > All Programs > Accessories > System Tools > System restore. Choose a date/time before all this started.

Mark

Reply 3 : multiple issues system corrupting

Hi Mark,
thanks for reply.
I did a system restore back a month prior to initial problems and according to windows no changes to my machine have taken place.
Does that mean there was no change to registry or anything like and would it be worth doing a root kit test if so what do you recommend?
kevin

Reply 4 : multiple issues system corrupting

frequent file corruption can be caused by bad RAM. You can test the RAM with memtest86 from here: http://memtest86.com/

Download the ISO file for Windows (the first download link) and create a CD from it using IMGBurn from here: http://filehippo.com/download_imgburn/

Boot your PC from the CD you created and run the memory test for at least five passes.
If the test shows that your RAM has errors, you will need to replace it.

Reply 5 : multiple issues system corrupting

did as you asked 7 passes no errors. took me all day by the way about 7 hours :~(