Symptom:
Windows Cloned HDD boots to blank screen

Cause:
Existing registry entries prevent Windows from re-assigning the C drive letter to the correct new volume

Fix:
Edit the SYSTEM registry file in \Windows\System32\Config to remove the drive mappings

Method 1: Use the BOOTFIX utility from the HDD Clone Fix shortcut
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Bootfix Instructions:

To remove specific existing registry entries:
---------------------------------------------
Bootfix w: d: [d2: d3: d4: d5:]

Where:
w:  - the drive containing the Windows Offline registry to be modified
d:  - the DOS Drive letter to be removed from the registry, usually C:
d2: - another optional DOS Drive letter to be removed from the registry
d3: - another optional DOS Drive letter to be removed from the registry
d4: - another optional DOS Drive letter to be removed from the registry
d5: - another optional DOS Drive letter to be removed from the registry

Example:
Bootfix e: c: d:

This modifies the offline SYSTEM registry file on the e: drive to remove
references to c: and d:

It is recommended on UEFI based clones to remove all drive letter entries that
relate to the cloned drive.

To remove all existing drive letter registry entries:
-----------------------------------------------------

Bootfix w: -all

Where:
w:  - the drive containing the Windows Offline registry to be modified

To show existing registry entries:
----------------------------------
Bootfix w: [-show]

Where:
w:  - the drive containing the Windows Offline registry to be examined


Method 2: (Manual)
++++++++++++++++++

1/ Open RegEdit (PROGRAMS > Administrative Tools > Regedit)
2/ Select HKEY LOCAL Machine
3/ Use File > Load Hive
4/ Browse to ?:\Windows\System32\Config where ?:\ is the cloned copy of your hard drive
5/ Open SYSTEM. You will also need to give a temporary name to the loaded Hive, i.e. SYS
6/ Browse to SYS\Mounted Devices
7/ Delete or rename the entries for DosDevices\C: and potentially any other drive letters that have been cloned
8/ Close the loaded Hive
9/ Reboot

Andrew Sharrad 24/12/19
