Windows: Prevent from release a DHCP lease on shutdown

Hi,

Windows by default releases the DHCP lease on shutdown. This is not useful if you often have to boot Windows and you want (if possible) the same IP Address Windows has before booting.

By default Windows interprets DHCP Option 2 submitted by the DHCP Server and if this is not set it release the lease.
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Debian: Shutdown when pressing power button

Hi,

when you install Debian with just the Standard minium System utilities a power off by pressing the power button is not possible.

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Windows: Find a driver which leaks memory

Hi,

if your system runs out of (physical) memory and no process could be identified who is allocating the memory, the paged- or nonpaged pool could also have an high memory load.
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Windows: Using deduplication on a volume

Hi,

since Server 2012R2 Windows has the ability to enable deduplication on volumes. This means Windows can find identically blocks on a volume and create references to them. So the block is just stored one time.
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VirtualBox: Boot from USB

Hi,

Virtualbox allows to boot from USB. But this feature isn’t exposed to the GUI.

Lets start. First of all determine the physical disk. Open Powershell and query the disks by WMI

PS D:\> Get-WmiObject -Query "Select * from Win32_DiskDrive"

Partitions : 3
DeviceID   : \\.\PHYSICALDRIVE0
Model      : Samsung SSD 850 PRO 512G
Size       : 512105932800
Caption    : Samsung SSD 850 PRO 512G

Partitions : 1
DeviceID   : \\.\PHYSICALDRIVE2
Model      : Generic USB CF Reader USB Device
Size       : 4030387200
Caption    : Generic USB CF Reader USB Device

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