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Chapter 1 Installing Windows
Windows Server 2019 Hyper-V support
―
28
When installing using Rapid Setup
The Windows OS creates three partitions at the head of the hard disk drive.
Recovery Partition
—
EFI System Partition (ESP)
—
Microsoft Reserved Partition (MSR)
—
614 MB of disk space is allotted to the two partitions at the head.
Recovery Partition
(499MB)
EFI System Partition (ESP)
(99MB)
*1 May be 300MB in size depending on hard disk drive type.
*
2 MSR is not displayed on Disk Management.
When installing using Manual Installation
When creating a partition, Windows OS creates the following partitions at the hard disk
drive.
Recovery Partition
—
EFI System Partition (ESP)
—
—
Microsoft Reserved Partition (MSR)
For example, when 61,440MB is specified for partition size, the area available free area is
calculated as follows:
61,440MB - (100MB + 16MB + 602MB) ＝ 60,722MB
Recovery Partition
499MB
EFI System Partition (ESP)
(100MB)
*1 May be 300MB in size depending on hard disk drive type.
*2 MSR is not displayed on Disk Management.
Refer to the following web site for information related to Windows Server 2019 Hyper-V.
https://www.58support.nec.co.jp/global/download/w2019/hyper-v/hyper-v-ws2019.html
Installation Guide (Windows Server 2019)
3. Installing Windows Server 2019
: 499MB
:
99MB *1
:
16MB *2
Free area
System Partition
*2
Microsoft Reserved Partition (MSR)
(16MB)
*1
: 499MB
: 100MB *1
:
16MB *2
Free area
System Partition
*2
Microsoft Reserved Partition (MSR)
(16MB)
*1
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