Office365 and calendar permissions

Run PowerShell and run following commands:
$UserCredential = Get-Credential
$Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://outlook.office365.com/powershell-liveid/ -Credential $UserCredential -Authentication Basic -AllowRedirection
Import-PSSession $Session

Remove-MailboxFolderPermission -Identity user@mycompany:\calendar -user myuser@mycompany.com

After that, re-grant the calendar permission Review, Editor or Owner to the user. In this case:
Add-MailboxFolderPermission –Identity A@contoso.com:\Calendar -AccessRight Editor,Owner -User B@contoso.com

Qi wireless charging

This is the list of Android phones that support this feature:
Samsung Galaxy S5
Samsung Galaxy S6
Samsung Galaxy S6 Edge
Samsung Galaxy Note 4
Google Nexus 4-7
Motorola Droid Maxx
Nokia Lumia 920
Nokia Lumia 928
Nokia Lumia 929
Nokia Lumia 930
Nokia Lumia 1020
Nokia Lumia 1520

We expect future furniture to have this build in so you can charge things just by putting them on the table or drawer. IKEA has announced it.
Mocreo has some nice and cheap wireless chargers.

Plain

Our civilization is advancing, Microsoft Windows window logo is becoming every time plainer and Google logo too. People cannot hand write properly anymore and serif font does not look right too.

Shortcuts on the terminal

For shortcuts on the desktop do not bother with crap group policies to deploy shortcuts.
Just create them and copy to C:\Users\Public\Desktop and if you have icons of choice copy them over lets say to C:\Users\Public\Pictures

To pin useful shortcuts to Outlook or Word use THIS guide.

Word templates location

The best location for e.g. autotext templates is C:\Users\user\AppData\Roaming\Microsoft\Word\StartUp
especially if you have a group policy that overrides templates and the one you have added just for yourself will get unticked again by GPO, very annoying.

ARP address mismatch

The normal ARP request/response is like below.
A ask who is B.
B replies B is xx-xx-xx-xx-xx-xx.
However, in some cases the behavior will like this.
A ask who is B.
C replies B is xx-xx-xx-xx-xx-xx.
When Vigor detects this behavior, Vigor will send the ARP mismatch messages.
This abnormal ARP was blocked by Vigor with former firmwares.
However, some networks will have this ARP so Draytek allows this in most of new firmwares.

Neopost franking machine and Draytek router

The issue was with the franking machine not able to connect to their central server.
I have tried multiple things with no avail.
Then my intuition told me to check VPN settings and voila!
SSL VPN was enabled which in case of Drayteks sticks to port 443 which is exclusively used by franking machine service.
This VPN SSL port has to be changed to something else away from 443 then franking machine should work again.
Good luck

Noise cancellation

Applications can be “1-dimensional” or 3-dimensional, depending on the type of zone to protect. Periodic sounds, even complex ones, are easier to cancel than random sounds due to the repetition in the wave form.

Protection of a “1-dimension zone” is easier and requires only one or two microphones and speakers to be effective. Several commercial applications have been successful: noise-cancelling headphones, active mufflers, and the control of noise in air conditioning ducts. The term “1-dimension” refers to a simple pistonic relationship between the noise and the active speaker (mechanical noise reduction) or between the active speaker and the listener (headphones). Continue reading Noise cancellation

Windows registry corruption

In this case I was having problems fixing a DVD drive on a laptop. The main issue was with a corrupt registry. The idea was to delete a corrupt key and allow the system to recreate it, but the following issue was inability to delete the registry key even as administrator.
The solution is to use PSEXEC tool available from Microsoft HERE
Run this from CMD as administrator:
psexec -i -d -s c:\windows\regedit.exe
The you should be able to delete the registry. Make sure to backup the registry key beforehand.
Once deleted the device should disappear. Restart the laptop and scan for devices. Recover the key from a backup and DVD should come back to life.

Sky

Sky is messing around. Their router is at least once a day losing the connection, then it asks you to run some troubleshooting in the web-browser then as a mandatory step redirects you to their sky.com website.
I think they do this on purpose to force their customers to view it. Strange thing is that for some time you can browse their website, read articles while the rest of the Internet is still unavailable.
Not good Sky, not good.

Not able to install .NET Framework 3.5?

On the Server 2012 for instance? In my case it was failing when using Add Roles & Features
Please just run this command in elevated PowerShell.
Install-WindowsFeature –name NET-Framework-Core –source :\sources\sxs
I hope you have an installation DVD at hand.

NTRFS: error event 13508

I ran into this problem so I ran the Authoritative FRS restore procedure using the D4 flag on the old server.
Click Start, and then click Run.
In the Open box, type cmd and then press ENTER.
In the Command box, type net stop ntfrs.
Click Start, and then click Run.
In the Open box, type regedit and then press ENTER.
Locate the following subkey in the registry:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\NtFrs\Parameters\Backup/Restore\Process at Startup
In the right pane, double click BurFlags.
In the Edit DWORD Value dialog box, type D4 and then click OK.
Quit Registry Editor, and then switch to the Command box.
In the Command box, type net start ntfrs.
Quit the Command box.
Continue reading NTRFS: error event 13508

Moving to a new hard drive

Lets say you want to migrate your system to a new hard drive.
Of course the best practice is to buy a hard drive with the exact same size. This will save you problems.

I think instead of changing the files where disk UUIDs reside just swap UUIDs between the old and new disk.

invalid partition -- table wrong signature 0
This means something went wrong with the partition table and you want to use fdisk to write a valid partition table.

Prelinking

There is an extensive discussion about benefits and disadvantages of this features.
I have decided to disable it.

1. open “/etc/sysconfig/prelink” in a text editir (such as vi)
2. you should see this line: PRELINKING=yes
3. change ‘yes’ to ‘no’
4. save the change you just made & exit the text editor
5. manually run “/etc/cron.daily/prelink” as root.
6. prelinking is now disabled and will not reactivate the next time you reboot.

CryptoLocker is back!

Unfortunately this dangerous ransomware has reappeared on the network and managed to inflict heavy damages to business across the Europe especially Spain and then UK.
Bad guys have figured out how to effectively penetrate antispam and antivirus scanning gateways including Symantec.cloud.
Someone has bought the source code and released upgraded malware collecting ransom from desperate businesses.

SSHD, SSD and Windows

These disks will save reputation of Microsoft because performance of Windows systems on traditional hard drives is bad. It happens to me to turn on this system from time to time and experience the difference.

VMware: I/O pass-through devices

This has to do with all sorts of backup tape drives (HP, IBM) including external ones that are not supported by VMware, but you still want to make use of them on one of your VMs.
Follow THIS article and bear in mind that you will have to restart the hypervisor once then destination VM another time.

whatever you do or fix please test it afterwards, better however do not fix things that work, wait until they break otherwise feel the wrath of dummy users.