When you buy a new Mac it’s like any other PC: It boots fast and it’s responsive. We recommend buying and installing Drive Genius 3 in the first month of purchasing your new Mac. Hard drives typically fail within a short time if there is a defect present from manufacturing. If a hard drive proves reliable for a few months , the hard drive has a significantly greater chance of remaining reliable. On the other hand, a hard drive can fail at any time in many different situations. I would like to list the top 5 reasons you should have Drive Genius 3 installed on your Mac.


Based on my experience in Technical Support, computer users encounter issues with their Mac’s hard drive within the first months of purchasing them or possibly years later. These failures typically align with whatever the manufacturers mean time between failures (MTBF) specs are. What does this really mean ? It means based on manufacture specs, your drive will operate or fail within an acceptable range agreed upon by Apple and the vendor. How does this pertain to you ? Well, if the drive fails and it’s under warranty you get a replacement at no charge. What happens if your new Mac’s drive fails and you don’t have a backup? You will have to try Data Rescue 3 software, or if it’s more severe, a physical recovery of the drive may be needed. In many cases the data loss is avoidable by using Drive Genius 3 and enabling DrivePulse. DrivePulse will methodically check all of your connected storage devices for bad blocks, file system and catalog errors on a routine basis and alert you when immediate action is necessary. These alerts can in many cases save you from data loss scenarios.

Defrag Adding and deleting files to and from your hard drive will cause the drive to become fragmented. When the OS writes files to the drive, it will look for empty space on the hard drive to write data to. If the space is too small to fit the file, it will write part of the data in one area and the remaining data to another area of the hard drive. This way no disk space is wasted. However, this will cause the drive to slow down as it will need to scan multiple parts of the hard drive to locate and read the entire file.

The more writing and deleting that is done to the hard drive, the more fragmented the drive will be. The process will gradually have an impact on the hard drive’s performance. This is why using Drive Genius 3 to defragment your hard drive is an excellent way to boost the performance of your computer. Drive Genius 3 puts all these broken up pieces together into one continuous block with all of the empty space at the end. The Defrag feature displays information in two separate tabs: Volume Fragmentation and File Fragmentation.

  1. DriveSlim DriveSlim™ is a tool to help recover drive space by deleting or archiving large, duplicate, or unused files. Through DriveSlim’s various slimming plans, Drive Genius 3 will detect and recommend files that can be deleted from your system to help free space on your hard drive. DriveSlim™ can help you determine what files can be deleted when your hard drive gets near its full capacity. DriveSlim™ works only on user files.

Each Slimming plan individually searches for files that can be deleted from the system to save space. The Slimming Plan’s Options Menu allows you to fine tune your Slimming Plans and help filter out specific files from your hard drive. By adjusting the sliders and checking various options, you will be able to locate any files that may be bloating your hard drive. Large Files: Finds files that are greater than a set minimum size and have not been accessed in a period of time you specify. The detected minimum size can be from 5MB to 100MB. The period of time can be 0 to 365 days.

Duplicate Files: Finds any files that are greater than a set minimum size that have duplicates. The detected minimum size can be 0MB to 100MB. You have an option to replace any duplicates with an alias pointing to the original file.

Unused Localizations: Finds all localized resources for any applications and allows you to specify what languages you want to keep. This will help delete any unnecessary language files from your applications. You can select any other languages to be kept by marking the selected language.

Universal Binaries: A Universal Binary is a container for multiple application binaries, each optimized for a specific CPU. For any given application, there are up to 4 possible binaries in one file (Intel, Intel 64-bit, Power PC, PowerPC 64-bit), which your machine uses to run the application. Intel-based Macs do not need PowerPC binaries, and vice versa. DriveSlim detects and deletes any unnecessary binaries that your computer hardware cannot run. If you are using a 32-bit system, you can choose to keep 64-bit binaries by enabling “Keep 64-bit variants” in the Slim Options. If you are using a 64-bit system on Mac OS X 10.6 or greater, you can choose to keep 32-bit binaries by enabling “Keep 32-bit variants”. At least one option must be enabled (64-bit or 32-bit).

Cache/Temporary Items: Finds all cached and temporary files that have not been accessed in a period of time you specify. The period of time can be set from 1 to 31 days.

Repartition Scan Most current hard drives will automatically reallocate any bad blocks they come across to another sector on the hard drive. Each hard drive has a set amount of space to handle these bad blocks and reallocations. If you suspect there are bad blocks on the volume or hard drive, you may enable Spare Bad Blocks to allow Drive Genius 3 instruct the hard drive to dereference the bad blocks. When Drive Genius 3 detects a bad block, it will attempt to read the information for the bad block and write it back to the same block. This will indicate to the hard drive that the sector is not available, which will require its internal mechanisms to note the bad sector and reallocate the data onto a different sector.

Repartition Repartition enables you to resize and manage partitions (volumes) on your hard drives. Unlike traditional methods of backing up, erasing and repartitioning the drive, Drive Genius 3 allows you to expand or shrink partitions without erasing them. This can be extremely handy to manage large external and internal volumes to accommodate data migration, Time Machine backups, and resizing existing volumes for other uses.

Drive Genius 3 is extremely easy to use. In just a few clicks, Drive Genius 3 will defragment and resize your partition to the size of your choice. You can use the Repartition feature to create and delete partitions. Drive Genius 3 includes many custom icons that can be automatically applied to your newly created partition. The Repartition feature can hide partitions from users as well. Last but not least, the feature also has the ability to shift a partition on the hard drive in addition to reconstructing partition maps.