Mysterious Error Message

    August 12, 2003

Reader Question:

I have just got a new computer with Windows XP installed on it. I have had the usual password problems but it also does not disconnect after receiving/sending mail although I have told it to do so. I also get an error message when I shut down from outlook express – “the instruction at ox 77fs2004 referenced memory at oxo 7f4608 the memory could not be written.” Any idea what this means please? And how I can make it disconnect until I get broad band?

Carey’s Response:

This typically means you have bad memory in the computer. You can download and run a great memory test program for free from

If it detects bad memory, you’ll need to have that memory replaced.

Thanks for writing,


Carey Holzman owns and operates Discount Computer Repair (602-527-9723) in Phoenix, Arizona, where he offers repairs, upgrades, custom built PCs and network wiring at highly competitive pricing. His networking tips have appeared in David Strom’s book, The Home Networking Survival Guide (McGraw/Hill), and his own book on PC maintenance is currently available at local book stores, or directly through him. His free informative web site can be found at Donate $30 to help maintain his site and you’ll get a free autographed copy of his book. Carey can be reached directly at