![]() The encrypted volume isn't accessible, and the computer lists the volume's file system as Unknown.Ī message similar to the following message is displayed: The VM is restarted and the following behavior is observed: Hyper-V Gen 2 VM: Can't access the volume after BitLocker encryptionīitLocker is turned on a generation 2 virtual machine (VM) that runs on Hyper-V.ĭata is added to the data disk as it encrypts. Support for classes of HDD/SSD hybrid disks - BitLocker can encrypt a disk that uses a small SSD as a non-volatile cache in front of the HDD, such as Intel Rapid Storage Technology. By taking on that workload, Encrypted Hard Drives increase BitLocker performance and reduce CPU usage and power consumption. Support for Encrypted Hard Drives - Encrypted Hard Drives are a new class of hard drives that are self-encrypting at a hardware level and allow for full disk hardware encryption. Integration with Azure Active Directory (Azure AD) - BitLocker can store recovery information in Azure AD to make it easier to recover.ĭirect memory access (DMA) Port Protection - By using MDM policies to manage BitLocker, a device's DMA ports can be blocked which secures the device during its startup.īitLocker Network Unlock - If the BitLocker-enabled desktop or server computer is connected to a wired corporate network in a domain environment, its operating system volume can be automatically unlocked during a system restart. BitLocker can be managed on PCs or other devices by using the following interfaces: FIPS is a United States Government standard that provides a benchmark for implementing cryptographic software. New encryption algorithm, XTS-AES - Added in Windows 10 version 1511, this algorithm provides additional protection from a class of attacks on encrypted data that rely on manipulating cipher text to cause predictable changes in plain text.īy default, this algorithm complies with the Federal Information Processing Standards (FIPS). ![]() Several other areas of BitLocker were improved in versions of Windows released after Windows 7: The tradeoff is that the encryption process for pre-existing data takes more time. The encryption process doesn't need to finish first, and encryption doesn't adversely affect performance. ![]() Depending on the size of the drive, this delay can be substantial.īy using the new conversion model, sensitive data can be stored on the drive as soon as BitLocker is turned on. Therefore, for data to be considered protected and compliant with data protection standards, the encryption process has to finish before sensitive data is stored on the drive. Before the process finishes, the data that existed on the drive before encryption began - that is, potentially compromised data - can still be read and written without encryption. Benefits of using the new conversion modelīy using the previous conversion model, an internal drive can't be considered protected and compliant with data protection standards until the BitLocker conversion is 100 percent complete. To preserve backward compatibility, BitLocker uses the previous conversion model to encrypt removable drives.
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