How Can I Reinstall Disk Utility?

Hi,
I been having problems opening Disk Utility to format an USB drive since december 2009, every time I tried it freezes like 1 minute an never opened. Then I supposed it was a problem with my hard disk maybe corrupted data.
Today I tried to use the Disk Utility using Mac OS Install DVD, holding C key. After that, I put to verify my MacBook hard disk, and after that told me that I need to repair. So I've tried to repair, but Disk Utility could not do it, and it stops booting my hard drive.
I needed to use a full restore of a Time Machine backup, but now I can't open the disk utility and give me the following message:
- You can't open the application "Disk Utility.app"; because it is not supported on this architecture.
*So how can I reinstall the Disk Utility from my Mac OS Install DVD?*
Thanks,

Use Pacifist to extract it from your Leopard DVD.

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Reinstalling Lion/Mountain Lion Without Erasing the Drive
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
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                    Macintosh HD (disk0s2) / [Startup]: 749.3 GB (407.34 GB free)
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          Apple Inc. BRCM2070 Hub
                    Apple Inc. Bluetooth USB Host Controller
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          Western Digital External HDD     500.11 GB
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          Apple Computer, Inc. IR Receiver
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                    Iomega_HDD (disk2s2) <not mounted>: 1 TB
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          Apple Inc. thunderbolt_bus
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          at.obdev.nke.LittleSnitch          (4050 - SDK 10.8)
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          SharePointBrowserPlugin: Version: 14.0.0 3rd-Party support link
          JavaAppletPlugin: Version: 14.9.0 - SDK 10.7 Outdated! Update
Safari Extensions:
          Slick Savings: Version: 1.0
          Searchme: Version: 1.3
          Amazon Shopping Assistant: Version: 1.1
          Ebay Shopping Assistant: Version: 1.1
Audio Plug-ins:
          BluetoothAudioPlugIn: Version: 1.0 - SDK 10.9
          AirPlay: Version: 2.0 - SDK 10.9
          AppleAVBAudio: Version: 203.2 - SDK 10.9
          iSightAudio: Version: 7.7.3 - SDK 10.9
iTunes Plug-ins:
          Quartz Composer Visualizer: Version: 1.4 - SDK 10.9
User Internet Plug-ins:
          RealPlayer Plugin: Version: (null) 3rd-Party support link
3rd Party Preference Panes:
          Blackmagic Desktop Video 3rd-Party support link
          Flash Player 3rd-Party support link
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Old Applications:
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               4%          WindowServer
               1%          EtreCheck
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          104 MB          com.apple.IconServicesAgent
          104 MB          Messages
          98 MB          mds_stores
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HT2523 I have accidently delete TextEdit in my computer, how can I reinstall it?

I have accidently delete TextEdit in my computer and cleared trash, how can I reinstall it?

I'd like to start by clearing up a lot of the nonsense that has been said here…
TextEdit is not available to download on the App Store & Mac OS 10.5 cannot access that anyway!
Tex-edit-plus is not the same app and Softonic have a bad reputation as seventy one mentioned, avoid it at all costs.
Text Wrangler – whilst it is a nice 'plain text editor' for editing 'code' files it will not open & save Word documents correctly, I'm not sure it handles RTF either? It is not the same as TextEdit.
The options I see you having are…
Recover it from a backup (let me guess - you don't have any?).
Extract it from the original OS installation media, Pacifist can help do this, but you will need to dig into packages to find it.
Install OS X onto a spare disk & copy that over.
Reinstall OS X over the top of your current install, causing the original applications to be re-written
It has been so long since I installed 10.5 I cannot remember if there was a 'reinstall OS X' option so it is possible that number 4 is NOT AN OPTION. If you attempt this & don't have a full bootable backup you risk losing everything.
Option 2 is the safest,
Insert your Install DVD, try opening the following location (the 10.5 install DVD has an 'Essentials.pkg' that appears to contain TextEdit). This is hidden on the disk inside the following folders…
Mac OS Install DVD/System/Installation/Packages/Essentials.pkg
Open that .pkg in Pacifist. It will create the layout that mirrors an installation, dig into 'Contents of Essentials.pkg' /Applications and you should find TextEdit.app. Try extracting that to a new location.
My terms may be incorrect since I used a newer version of Pacifist to check, but the general principle should be the same.
If you don't have the install DVD/ CD, frankly all hope is lost, go and buy one from Amazon or Ebay.
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