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PerfectDisk uses Microsoft's defrag APIs (part of Windows) which ensures that all defrag activity is performed in a Microsoft safe and supported manner. No defragment actually "moves" files around. They all request via the FSCTL MoveFile() API to have a file "moved" and it is the file system...

PD reads the prefetch info to determine what are "boot files". When you install SP2, it clears out the prefetch info. Windows will slowly rebuild this info as the computer is used over a few days. - Greg/Raxco Software Microsoft MVP - Windows File Systems Disclaimer: I work for Raxco...

The author provides nothing to back up this statement. There is NOTHING from Microsoft that says that defragmenting Exchange servers can cause data corruption or issues. "Because these special-purpose tools safely keep Exchange databases from fragmenting, there is no need for additional...

"There are issues with defragging an exchange server with third party defragmenting programs. One issue being you could lose all the data on the box!" This is a common mis-perception. There are no issues with defragmentation of Exchange systems - Microsoft's defrag APIs fully support this...

I don't buy into the "defrag every day" thing as well. If you know what you are doing and do it right the first time, you actually slow down the rate of re-fragmentation - meaning that you don't have to defrag as often. Part of "knowing what you are doing" is consolidating free space...

"basic physics 1 on 1 aint it greg ? the more you use somthing with moving parts the more it wears out ?, " Then that would leave you in a catch-22 situation. Fragmentation caused extra hard drive seeks - which according to your explaination would reduce the life of the drive. However, if...

"This shortens HD life. And so does defrag." ???? Where did you come up with this? - Greg/Raxco Software Microsoft MVP - Windows File Systems Disclaimer: I work for Raxco Software, the maker of PerfectDisk - a commercial defrag utility, as a systems engineer in the support department.

With PerfectDisk and the just released O&O V6, you can schedule a defrag and have it process one drive after another. With Diskeeper, a defrag schedule will defrag all drives selected at the same time (not one after another). As with the built-in defragmenter, you could accomplish this...

"is it the norm to have to reinstall." This is NOT the "norm"! Is it possible that PDEngine is dr. watsoning? You mention getting a message about PDEngine. Is the message "Lost connection to PDEngine"? If so, that would indicate that PDEngine.exe abnormally terminated. If so, then...

What are the permissions on both drives set to. By default, Everyone usually has access. Everyone includes System. If you have changed permissions and System doesn't have at least Read access, then PD will not be able to defragment and therefore will not even display. - Greg/Raxco Software...

Unfortunately, reformatting and re-installing Windows has removed any way of diagnosing what might have occured. I truly believe that PerfectDisk was not involved with what happend with your system - it was just the last thing that ran and therefore got tagged as being the culprit. -...

If you look in your System Event Log, you should see some error messages for these "devices" that failed to start. What does it say? - Greg/Raxco Software Microsoft MVP - Windows File Systems Disclaimer: I work for Raxco Software, the maker of PerfectDisk - a commercial defrag utility...

PDEngine should be set to Manual. It will start automatically when you launch the PerfectDisk GUI or a scheduled defrag starts. - Greg/Raxco Software Microsoft MVP - Windows File Systems Disclaimer: I work for Raxco Software, the maker of PerfectDisk - a commercial defrag utility, as a...

"greg has sent you a pm indyjones to resolve the issue let usknow what you work out" Still no response from indyjones. - Greg/Raxco Software Microsoft MVP - Windows File Systems Disclaimer: I work for Raxco Software, the maker of PerfectDisk - a commercial defrag utility, as a...

What's new with PDV6: - Faster defrag on larger drives (10-15% faster. Large drives defined as being over 100GB) - Integration with Active Directory group policy for deployment, scheduling, configuration and management (you can still use PerfectDisk's normal GUI interface for this as well)...

"I use diskeeper (full version) and have it set on 'set it and forget it', so it decides when to defrag my hard drive, while I am still using it, with minimal loss of speed" So how are you determining that Diskeeper is actually doing anything - other than just running :) - Greg/Raxco...

"I have been using Diskeeper for some time, it usually takes 50 odd minutes to defrag my 30 gig drive, after hearing your praise I decided to install and try Perfectdisk. It took 3hrs and 11mins to complete, to say the least I was not impressed" Some defragmenters simply defragment files...

All DiskDoctor does is to call the built-in CHKDSK utility. - Greg/Raxco Software Microsoft MVP - Windows Storage Management/File System

I'd suggest contacting Executive Software and asking them what the heck is going on. Something obviously is - they have in their e-letter a description of an "issue" like this. My anticipation of their response is that they will say BIOS issue and having a system drive greater than 7.8GB (I...

How do you know how good of a job Diskeeper is doing in consolidating freespace? You really can't tell from their stats. You can kinda tell from their disk map - which isn't granular enough to tell the whole story... Are you running their Best Performance defrag or their Improved Free Space...