Existing users, 
 TechTool Pro - 3.0.6hardware/software diagnostic tool |
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Feedback Summary:
| Version 3.0.6: | |||||
| Overall Rating: |   (3.9) |
Features: | Not rated (0.0) | Support: | Not rated (0.0) |
| Ease of Use: | Not rated (0.0) | Quality / Stability: | Not rated (0.0) | Price: | Not rated (0.0) |
Key to Types of Feedback:
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Commentary 
Featured Reviews
Saved my hard drive! - Version: 4.6.1, 10/20/2009 12:11AM PST
barretme
My Mac OS partition crashed. Was on AppleCare phone support for a couple hours and they couldn't help, so they recommended I download TechTool. It came free with my AppleCare service. I just let it run and do its thing, and it fixed whatever was wrong with my hard drive and saved me from losing all my data. Highly recommend!
Excellent utility, but .... - Version: 4.6.1, 7/11/2008 03:13AM PST
(1 of 2 users found this comment useful)
Gulliver64
Tech Tool Pro saved me from computing desaster more than once! It is very reliable and it's features to prevent problems or at least warn early work perfectly.
However, there is one major drawback: Tech Tool Pro is extremely slow when defragmenting the hard disk. Even on my 8-Core-3-GHz MacPro it took more than 2 hours to defrag the internal hard disk which is less than 25% full. Tech Tool Pro uses only less than 20% of the available CPU-power (according to Apple activity monitor) and uses only 64 MB of physical RAM. Since defragmentation has a lot to do with reading data from the hard disk to RAM and write them back to hard disk this seems to be one of the bottle-necks for performance. In a time when even the cheapest consumer level computers are sold with at least 1 GB of RAM this strategy is completely outdated! For 10 years now every single Macintosh comuter was sold with at least 256 MB RAM and Tech Tool Pro does not even run in these machines since it requires at MacOS 10.4 which itself requires at least a G4 computer (which shipped with a minimum of 512 MB RAM).
However, there is one major drawback: Tech Tool Pro is extremely slow when defragmenting the hard disk. Even on my 8-Core-3-GHz MacPro it took more than 2 hours to defrag the internal hard disk which is less than 25% full. Tech Tool Pro uses only less than 20% of the available CPU-power (according to Apple activity monitor) and uses only 64 MB of physical RAM. Since defragmentation has a lot to do with reading data from the hard disk to RAM and write them back to hard disk this seems to be one of the bottle-necks for performance. In a time when even the cheapest consumer level computers are sold with at least 1 GB of RAM this strategy is completely outdated! For 10 years now every single Macintosh comuter was sold with at least 256 MB RAM and Tech Tool Pro does not even run in these machines since it requires at MacOS 10.4 which itself requires at least a G4 computer (which shipped with a minimum of 512 MB RAM).
Most Recent Replies: View All 1 Replies
- Excellent utility, but ....
Techtool Pro Success - Version: 4.6.1, 7/1/2008 05:09AM PST
(1 of 2 users found this comment useful)
dunruh--2008
Recently I have had many problems with my hard drives, both internal
and external. I had two external Western Digital drives fail. I tried
Diskwarrior but it failed to fix any of my drives. I recently updated
TechTool Pro and decided to use it to examine my drives. It found
directory problems in both my primary drive and my external 1TB WD
drive. The program repaired both my main drive and my external drive.
I am now able to use my external drive (which I had gotten an RMA to
return it) and my internal drive now allows me to operate normally (I
previously was unable to update Microsoft Office 2008 because of the
directory problems,; now I can update successfully). Thank you for
your great product!
Doug Unruh
