Tag Archives: disk

HOWTO fix Performance Monitor ‘unable to add counter’ errors

Several days ago, I started Performance Monitor, and I tripped the following error: Unable to add these counters: \Memory\Available MBytes \Memory\% Committed Bytes In Use \Memory\Cache Faults/sec \Memory\Cache Faults/sec \PhysicalDisk(*)\%Idle Time \PhysicalDisk(*)\Avg. Disk Queue Length \Network Interface(*)\Bytes Total/sec Looking around, I found and followed this article. The Solution I fixed the problem by executing the following command from an administrative Command Prompt window: lodctr /r … Continue reading HOWTO fix Performance Monitor ‘unable to add counter’ errors »

HOWTO compact vhd/vhdx Hyper-V files

It happened that the usual compact disk from Hyper-V Console doesn’t seem to be effective on one of mine .vhdx file. Looking around on the web, I discovered that it is a quite common problem. The solution is to open a Powershell window with administrative access rights, and use the following command: optimize-vhd <offline Hyper-V disk file> -mode full For further details about this command, … Continue reading HOWTO compact vhd/vhdx Hyper-V files »

HOWTO add encrypted disks to your PC

Imagine to be a contractor, and you want a secure black box to keep your customer data on your PC. This will come very useful, for example, in case of loss or theft of your notebook. A common approach is to encrypt the whole hard disk, but it has two main drawbacks: the whole system is slowed down by the disk encryption. usually it’s almost … Continue reading HOWTO add encrypted disks to your PC »