Frequently Asked Questions

Chances are, others have the same questions that you do. Therefore, we have taken the common questions for Diskeeper, Sitekeeper and Undelete and provided the answers (and the questions) below in our Frequently Asked Questions section. Simply select the product below that you have questions about. If you can’t find the answer you’re looking for, you can submit a tech support question here.

Diskeeper | Sitekeeper | Undelete

Question
Diskeeper shows half of a drive is allocated towards "Reserved system space".
Answer
This situation often occurs on NTFS partitions (NTFS is a file system- Short for NT File System). NTFS has features to improve reliability, such as transaction logs to help recover from disk failures. To control access to files, you can set permissions for directories and/or individual files. NTFS files are not accessible from other operating systems such as DOS. For large applications, NTFS supports spanning volumes, which means files and directories can be spread out across several physical disks. Often computer vendors who sell new systems tend to have their systems delivered to customers with this setting not correctly in place. Here is how to fix it: 1. Run Registry Editor by going to Start then clicking Run. 2. Type Regedt32.exe, and go to the following subkey: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\FileSystem. 3. In the right side of the window (right pane), double-click NtfsMftZoneReservation key. 3. In the DWORD Editor window that appears, change the 4 to a 1. 4. Click OK. 5. Reboot your system. The company that produced your machine actually needed to create this entry. It does not appear in any current Windows Service Pack. Here’s a link to the Knowledge Base Article (from Microsoft) on this: http://support.microsoft.com/support/kb/articles/Q174/6/19.ASP?LN=EN-US&SD=gn&FR=0

Question

Diskeeper shows half of a drive is allocated towards "Reserved system space".

Answer

This situation often occurs on NTFS partitions (NTFS is a file system- Short for NT File System).

NTFS has features to improve reliability, such as transaction logs to help recover from disk failures. To control access to files, you can set permissions for directories and/or individual files. NTFS files are not accessible from other operating systems such as DOS.
For large applications, NTFS supports spanning volumes, which means files and directories can be spread out across several physical disks.

Often computer vendors who sell new systems tend to have their systems delivered to
customers with this setting not correctly in place.

Here is how to fix it:

1. Run Registry Editor by going to Start then clicking Run.
2. Type Regedt32.exe, and go to the following subkey:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\FileSystem.
3. In the right side of the window (right pane), double-click NtfsMftZoneReservation key.
3. In the DWORD Editor window that appears, change the 4 to a 1.
4. Click OK.
5. Reboot your system.

The company that produced your machine actually needed to create this entry. It
does not appear in any current Windows Service Pack.

Here’s a link to the Knowledge Base Article (from Microsoft) on this:
http://support.microsoft.com/support/kb/articles/Q174/6/19.ASP?LN=EN-US&SD=gn&FR=0

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