C: drive is not displayed in Disk Defragmenter in Window 7 Ultimate. Tech Support

C: drive is not displayed in Disk Defragmenter in Window 7 Ultimate.

Two days back, my system displayed that it needed to run chkdsk.  When I tried chkdsk and chkntfs, it reported C: drive is dirty.  I ran third party disk defrag tools.  I do not see the chkdsk warnings now but C: drive is not displayed by Disk Defragmenter. 
Is my system stable or do i need to reformat and reinstall Windows 7?

Anwsers to the Problem C: drive is not displayed in Disk Defragmenter in Window 7 Ultimate.

Download Error Fixer (Free)

Hi kalyanisharp,
1) Do you have the C: drive listed under Computer?
For now I would suggest you to see if can find the drive detected in Disk Management.

Follow the path below to do the same.
Start> Type Disk Management in the search bar>Hit
Enter
See if C drive is detected there.
If it is detected there then run a Check disk and see if it finds some errors.
Access the link below for steps to run Check disk.
http://windows.microsoft.com/en-US/windows7/Check-a-drive-for-errors 
If that does not fix then boot the computer in Safe mode and let us know if you can find the drive in
Safe mode.
http://windows.microsoft.com/en-US/windows7/Start-your-computer-in-safe-mode 
Get back to us for further assistance.
Varun J: MICROSOFT SUPPORT
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Manually editing the Windows registry

Manually editing the Windows registry to remove invalid MACHINE_CHECK_EXCEPTION keys is not recommended unless you are PC service professional. Incorrectly editing your registry can stop your PC from functioning and create irreversible damage to your operating system. In fact, one misplaced comma can prevent your PC from booting entirely!

Caution: Unless you an advanced PC user, we DO NOT recommend editing the Windows registry manually. Using Registry Editor incorrectly can cause serious problems that may require you to reinstall Windows. We do not guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

To manually repair your Windows registry, first you need to create a backup by exporting a portion of the registry related to MACHINE_CHECK_EXCEPTION (eg. Windows Operating System):

• Click the Start button.
• Type "command" in the search box... DO NOT hit ENTER yet!
• While holding CTRL-Shift on your keyboard, hit ENTER.
• You will be prompted with a permission dialog box.
• Click Yes.
• A black box will open with a blinking cursor.
• Type "regedit" and hit ENTER.
• In the Registry Editor, select the Error 0x9C-related key (eg. Windows Operating System) you want to back up.
• From the File menu, choose Export.
• In the Save In list, select the folder where you want to save the Windows Operating System backup key.
• In the File Name box, type a name for your backup file, such as "Windows Operating System Backup".
• In the Export Range box, be sure that "Selected branch" is selected.
• Click Save.
• The file is then saved with a .reg file extension.
• You now have a backup of your MACHINE_CHECK_EXCEPTION-related registry entry.

Recommended Method to Repair the Problem: C: drive is not displayed in Disk Defragmenter in Window 7 Ultimate.:

How to Fix C: drive is not displayed in Disk Defragmenter in Window 7 Ultimate. with SmartPCFixer?

1. You can Download SmartPCFixer here. Install it on your computer. When you open it, it will perform a scan.

2. After the scan is done, you can see the errors and problems which need to be fixed.

3. The Fixing part is done, the speed of your computer will be much higher than before and the errors have been removed.

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