Symptoms
When you start Microsoft Reader on a desktop or a laptop computer, youmay receive the following error message:

Unhandled exception 0xC0000005: AV
Resolution
This behavior can occur if both of the following conditions are true:Less than 300 megabytes (MB) of space is available on yoursystem hard disk (the hard disk on which Microsoft Windowsis installed).Less than 300 MB of space is available on the hard disk onwhich the Microsoft Reader software is installed.