Because this error has
different causes, you may have to check multiple items on your
computer.
- If drive letters have been changed on
your computer, re-assign the original letter to the CD-ROM,
DVD-ROM, or operating system drive. Follow the steps appropriate
to your operating system:
Windows XP Users
- Click Start, and
then click Control Panel.
- In Control Panel, double-click
Administrative Tools, and then double-click
Computer Management.
- In the Computer Management tree,
click Disk Management.
- Right-click the CD-ROM or DVD-ROM
drive, or the drive that contains the operating system, and
then click Change Drive Letter and Paths.
- Click Change, and
change it to the original drive letter. Click OK,
and then click Close.
Windows 2000 Users
- Click Start,
point to Settings, and then click
Control Panel.
- In Control Panel, double-click
Administrative Tools, and then double-click
Computer Management.
- In the Computer Management tree,
click Disk Management.
- Right-click the CD-ROM or DVD-ROM
drive, or the drive that contains the operating system, and
then click Change Drive Letter and Path.
- Click Edit, and
change it to the original drive letter. Click OK,
and then click Close.
Windows NT Users
- Click Start, and
then click Run.
- In the Run dialog
box, type windisk.exe in the Open
field, and then click OK. This opens Disk
Administrator.
- Find the letter of the CD-ROM or
DVD-ROM drive, or the drive that contains the operating
system that needs to be changed back to its original letter.
- Right-click the drive letter and
select Assign Drive Letter.
- In the Assign Drive Letter dialog
box, select the original drive letter from the drop-down
list.
- Close Disk Administrator, accept
the changes, and restart the computer.
Verify that registry entries do not
contain invalid drive letters that might be causing this error:
Important: The
following steps require you to modify the Windows registry.
Modifications to the Windows registry, if not done correctly,
can cause serious problems to a Windows system. Before editing
the registry, see
How Do I Back Up Registry
Keys on My Computer?
- Click Start, and
then click Run. The Run dialog box opens.
- In the Open
field, type regedit, and then click
OK. The Registry Editor opens.
- In the Registry Editor, locate the
following registry key:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell
Folders
In the right pane, note the values
in the Data column of each entry. If any
value contains a drive that is not correct for your
computer, right-click the entry and select Modify.
Type the correct drive letter in
the Value data field, and then click
OK. For example, if one of the values is
"X:\Documents and Settings\Administrator", the drive letter
should be changed to a valid drive on the system, such as
“C:\Documents and Settings\Administrator".
Repeat steps 4 and 5 for each
entry whose Data value contains an
incorrect drive.
Repeat steps 3 through 6 for each
of the following registry keys:
-
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User
Shell Folders
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell
Folders
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\User
Shell Folders
Close the Registry Editor and run
the installation again.
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