Fix Missing Hard Drive Partition in Windows® 7
Fix a hard drive partition to keep the existing operating system like Windows XP or Vista intact. This way the trouble of uninstalling will minimize since one would just have to switch to the older operating system by removing the Windows 7 partition and by setting the boot manager.
The usual problem faced by users is that of a missing hard drive partition of Windows XP or Vista when you get it installed in a Windows 7 dual boot system. The problem is normally generated because the drive letter of the operating systems, XP or Vista, have not been assigned in Windows 7.
It is not a big task to resolve this issue though:
Step 1 Go to the Run Command section and click on Start.
Step 2 Type diskmgmt.msc on the search bar. The resulting outcome will pave the way for a Disk Management interface which will automatically open and display all of the connected hard drives and their partitions.
Step 3 At this point of time, select a Drive from the lower half of the disk management interface. Select one which does not have any drive letter.
Step 4 When you are through with this, go to the Context Menu and then right-click and then select on Change Drive Letter and Paths. Now one will have to go to the next menu and click on the add button. Very carefully choose and pick a drive letter which will be made available to you in the pull down menu. We are almost through with the repair now.
Step 5 To confirm the assigned selected drive letter, just click on OK and then do a quick check on the windows explorer or on My Computer. This will enable you to confirm the missing drive from either Windows XP or Vista and also confirm whether it is showing or not.