When encrypting a disk using PGP Whole Disk Encryption, it takes an excessive amount of time to complete the disk encryption.
This article describes how to improve the amount of time it takes to encrypt your disk using PGP Whole Disk Encryption.
PGP Whole Disk Encryption (PGP WDE) locks down the entire contents of a laptop, desktop, external drive, or USB flash drive, including boot sectors, system files, and swap files. You can also use PGP WDE to encrypt just the boot partition or Windows partitions. Encryption runs as a background process that is transparent to you, automatically protecting valuable data without requiring you to take additional steps.
Note: This article applies to PGP Desktop 9.x running on Windows 2000, XP, Windows Vista, and Windows 7.
When encrypting your hard disk with PGP Whole Disk Encryption, the transfer mode used by the IDE channel of the hard disk may affect the time it takes to encrypt your disk. The hard disk may automatically change the transfer mode it is using due to time-out or CRC errors. When a hard disk experiences these errors the transfer mode may change to the slower PIO mode which affects the encryption time of your disk.
If encrypting your disk takes an excessive amount of time, examine the transfer mode being used by the IDE channel of the hard disk.
To check the transfer mode:
1. Right-click My Computer, and then click Properties. 2. Click the Hardware tab and click the Device Manager button. 3. Expand the IDE ATA/ATAPI Controllers node. 4. Double-click the IDE Channel for your disk. 5. Click the Advanced Settings tab.
The transfer mode settings for the disks are displayed.
Changing the transfer mode being used by the IDE channel can decrease the amount of time it takes to encrypt your disk with PGP Whole Disk Encryption. To change the transfer mode from the slower PIO transfer mode to DMA, you must uninstall the driver for the IDE channel. After uninstalling the driver and rebooting the computer, the device will use the faster DMA transfer mode.
To re-enable the faster transfer mode for an affected device:
1. Right-click My Computer, and then click Properties. 2. Click the Hardware tab and click the Device Manager button. 3. Expand the IDE ATA/ATAPI Controllers node. 4. Double-click the IDE Channel for the device which you want to restore the typical DMA transfer mode. 5. Click the Driver tab. 6. Click Uninstall. 7. Click OK to confirm you want to uninstall the driver. 8. When the process completes, restart your computer.
When Windows restarts, the hard disk controller is reset and the transfer mode is set to the default value for each device that is connected to the controller.
For more information on PIO mode on IDE ATA and ATAPI disks, see the following Microsoft Support site article: