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Cannot read disk, please try again (when using a Windows 7 recovery CD/DVD)
Technical Articles ID:  KB67988
Last Modified:  01/31/2011

Environment

McAfee Endpoint Encryption for PC 5.2.0 and later

Microsoft Windows 7

NOTE: Endpoint Encryption for PC was formerly known as SafeBoot Device Encryption. McAfee Endpoint Encryption for PC 5.1.7 (Build 5500) was the first release to be branded with the new McAfee product name.

Problem

If Windows 7 unexpectedly shuts down, you usually have to repair the operating system with the Windows 7 CD. However, if the hard drive is encrypted with Endpoint Encryption for PC, the Windows 7 Bootable CD is not detected in Windows 7 because of the encryption.

You see the following error:

Cannot read disk, please try again

Cause

The hard disk is encrypted, causing the Windows 7 recovery CD/DVD to report the error.

Solution

Before using the Windows 7 recovery CD/DVD, decrypt the hard drive using one of the following McAfee bootable decryption tools:

  • SafeTech
  • WinTech 
  • EETech (EEPC 6.0)

Use the following articles to assist with the decryption:

How to create a SafeTech disk:

KB60875 - How to manually create a bootable SafeTech floppy disk
KB53257 - How to create a SafeTech boot disk for Endpoint Encryption
 

How to use SafeTech and WinTech:

KB61117 - How to use the WinTech CD to remove the encryption and boot sector from the hard-disk
KB61119 - How to use the SafeTech Disk to remove the encryption and boot sector from the hard-disk
KB66433 - Best practices for manually decrypting an encrypted hard disk
 

Informational:

KB53428 - What is WinTech and how is it different from SafeTech?

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