RAID Recovery Software—PartitionGuru


Updated on May 14th, 2021

What is RAID?

The term “RAID” stands for redundant array of independent disks which was originally redundant array of inexpensive disks. RAID is a storage technology that combines multiple disk drive components into a logical unit for the purposes of data redundancy and performance improvement.

Advantages of RAID

RAID is designed to improve performance and reliability and obtain larger capacity. Users don’t need to care how many disks form the RAID, for a RAID appears to the operating system to be one single logical hard disk. RAID technology possesses following advantages:

  • Provide large disk space. 2TB hard drive is large enough to common users at present, which, however, is far from enough to enterprise users. Larger disk space can be created by RAID composing several hard drives, for instance, compose five 2TB hard drives to 10TB disk space via RAID 0.
  • Fast speed. Being one of the most important parts of computer, hard drive develops quickly in capacity, and yet its speed improves slowly. RAID enables several hard drives to work at the same time, plus, these hard drive appears to be one hard drive logically, thus RAID reaches a speed that several or dozens of times of one single hard drive.
  • Improved data security. The parity and mutual image backup provides fault tolerance and ensure data security and reliable.

RAID data recovery with PartitionGuru

PartitionGuru provides powerful data recovery functions for files recovery and partition as well as RAID data recovery, BitLocker drive recovery, etc. It can reconstruct virtual RAID when RAID disks go wrong, and then recover files and partitions from RAID disks just like from local disks.

To construct virtual raid, please follow the steps here: start PartitionGuru and then clisk  the menu “Tool” to find the item “Construct Virtual RAID” as in the pictures below:

RAID data recovery

BitLocker Partition Recovery


Updated on November 23rd, 2020

This post is meant to discuss BitLocker partition recovery, or specifically how to recover deleted or lost BitLocker encrypted drives in Windows 10/8/7/Vista/XP. Free download the BitLocker data recovery software DiskGenius and start to recover BitLocker drive now.

Why do we need BitLocker encrypted partitions?

How to protect data from loss, theft, or hackers? The answer will be BitLocker.  BitLocker Drive Encryption is a full disk encryption feature included with the Ultimate and Enterprise editions of Microsoft’s Windows Vista and Windows 7, and with the Pro and Enterprise editions of Windows 8 desktop operating systems, as well as the server platforms, Windows Server 2008, Windows Server 2008 R2 and Windows Server 2012. BitLocker is able to encrypt the hard drive where the operating system is installed as well as internal hard drive. Besides, it can protect files saved on removable devices like external hard drive and USB flash drive.

BitLocker encrypted partition loss issues

BitLocker encrypted drive provides a safe and efficient way to prevent unauthorized access of your data, and it cannot avoid data loss issues, for example partition loss. There are many causes accounting for the issue, for example accidental deletion, disk repartitioning, bad sectors, partition table corruption, system crash, etc.

What to do when BitLocker partition gets lost? The first and foremost move is to stop all possible writing actions to the disk, otherwise recoverable files will turn to corrupted. Then start lost partition recovery with professional data recovery software such as DiskGenius.

BitLocker partition recovery software free download

DiskGenius is professional data recovery software and it supports to recover lost/deleted files from BitLocker drives, hard drive, external HDD, USB flash drive, SD card, thumb drive, virtual disk, RAID, etc. Moreover, it supports lost partition recovery, RAW drive recovery, formatted recovery, photo recovery, document recovery and so on. With this tool, you can recover recover lost BitLocker encrypted partition and files in the partition, which gets lost due to deleting, formatting, virus attack or other unknown reasons.

In addition to data recovery, DiskGenius is also an effective and free tool for BitLocker management. BitLocker partition is marked as “BitLocker Encrypted” in the software, and you can unlock Bitlocker drive via password, recovery key or BEK file no matter whether the Windows OS on your computer supports BitLocker function.

Lost BitLocker partition recovery guide: how to recover deleted / lost BitLocker partitions?

Before recovery

  • Try to keep the disk away from any writing actions so as to protect lost partition from being damaged.
  • You should know the password, recovery key or BEK file for the lost BitLocker partitions.

Below is the step-by-step partition recovery guide:

Step 1: Install and launch DiskGenius from a Windows computer.

It does not matter whether the Windows version supports BitLocker feature.

Step 2: Select the disk where you want to restore lost partitions and click Tools > Search Lost Partitions (Partition Recovery).

BitLocker data recovery

Step 3: Click Start button from the pop-up window and DiskGenius starts to scan the disk.

BitLocker Data Recovery

Step 4: Reserve correct partitions and Ignore wrong partitions.

You can judge whether to Reserve or Ignore the partition by preview files in partition.

BitLocker data recovery

Once the software finds out a lost BitLocker drive, you will be prompted to unlock it so that you can view files in the partition and check if you need to restore it.

BitLocker data recovery

Click OK when scanning process completes.

BitLocker data recovery

Step 5: Save partition table: Disk > Save Partition Table.

After lost partitions are saved to current partition table, you can access them in Windows File Explorer.

BitLocker data recovery

If you do not want to make changes to current partition table, you can just copy needed files to another disk instead of saving partition table.

BitLocker data recovery


To sum up, lost BitLocker partition recovery is easy to perform if you use professional data recovery software. Apart from recovering lost BitLocker drives, DiskGenius also supports to recover deleted or lost files from BitLocker encrypted partition. For more information, please refer to the article: BitLocker data recovery: how to recover data from bitlocker encrypted drive?

D:\ is not accessible. The parameter is incorrect


Updated on May 13th, 2021

 Drive not accessible. The parameter is incorrect

It frequently occurred that partition on hard drive or external hard drive can’t be opened and reports the error like “D:\ is not accessible. The parameter is incorrect.”

The parameter is incorrect

Various reasons can lead to this problem:  

  • Power failure for powered hard drive;
  • Plug out hard drive in an improper way;
  • Virus attack;
  • File system goes wrong;
  • Bad sectors.

How to deal with this problem without losing files in the partition? If you Google this problem, you’ll find many answers that suggest performing chkdsk or formatting, however, after which files will get lost.

How to recover data when drive is not accessible?

Step 1: Connect the storage device which is not accessible and reports “The parameter is incorrect” to computer. Then it can be recognized by your system. If your computer fails to detect it then try another USB port or PC.

Step 2: Download, install and launch Eassos Recovery to PC. Select the first recovery mode and enter next interface. This feature is capable of restoring lost data from damaged, RAW or formatted partitions.

The parameter is incorrect

Step 3: Select the icon representing the inaccessible partition and click “Next” to continue.

Step 4: Eassos Recovery checks partition information and searches for lost files and file directory. It displays files while scanning process is working and keeps updating scanning results as more files are found out.

The parameter is incorrect

Users are allowed to preview files while scanning is working and they can pause or stop scanning if all desired files have been found and there is no need to make further scanning.

Step 5: Save files to a safe location such as any healthy partition that has enough disk space to hold these files and doesn’t need recovering data.