I recently installed update 2571544 on my Lync 2010 client for Lync 2010, and I deployed the federation feature in the environment. I have more than 100 contacts in my federated environment. And whenever I sign in to Lync 2010, a presence unknown status is displayed on many of my contacts. So can anyone help me to fix lync 2010 presence unknown problem?

I am using Logitech setpoints oftware for about 6 months now. And for the first time  I have got some issue like this. I am using a Window Pro 64bit operating system, and everything was running quite smoothly until I recently my Windows 10 to Windows creators update and all of a sudden Logitech setpoint stopped working.When I try to install setpoint, a dialogue box saying "the setpoint has stopped" pops up. I was able to install all other software without any hassle but setpoint. I have tried everything including installing the latest version and the two previous versions of...

Hi. Recently I purchased a computer and it is showing a testing and a few smart error codes. What is its meaning? How can I solve it? Hope you reply to the earliest.

Hi. When I work on my Windows-based computer, it is rebooting many times by itself, and I have encountered a Window’s error, Slomins error codes. What is the solution to it? Hope you reply to the earliest.

Hi. While installing Virtual Basic Script on my computer, I have encountered a Skype error code 2738. What does it mean? How to handle it? Hope you reply to the earliest.

Hi. I am a non-IT person and don’t have any technical background. But I would like to know about the Site Minder. What are the different Site Minder error codes? Hope you reply to the earliest.

Hi. I am a non-IT person and don’t have any technical background. But, I want to know about a few SIP error codes and their features? Hope you reply to the earliest.

Hi. How to use a Hamming code for single bit error? How is detection and correction performed on it using a Hamming code? In short, how is single bit error detection and correction using a Hamming code can be done? Hope you reply to the earliest.

Hi. During my Sims three games, I am getting an error to save.The error is being displayed as Sims three saving error code 12. How should I handle it? Hope you reply to the earliest.

Hi. When I was playing the Sims three games, I got an error of Sims three error code 15. From then, I couldn’t open a few files. What is its meaning? How to handle it? Hope you reply to the earliest.