There are times when you try to open a file, an executable file for instance, but were unable to do so since you encounter an error in an Open File – Security Warning dialog box that says, “This publisher has been blocked from running software on your machine, You must unblock this publisher to run this software”. This kind of error is most likely thrown by your operating system because it considers the file to be unsafe and could potentially harm your computer. However, if you’re certain that the file is harmless, read on as this post will walk you through fixing the error so you can open the file without getting an error.
There are various options you can check out to fix the error. You may run the program using Command Prompt or unblock it using File Properties. You could also try turning off SmartScreen or use the unblock file command in Windows PowerShell.
The next thing you can do is to turn off SmartScreen temporarily. All you have to do is open the Windows Defender Security Center and from there, go to the App & browser control section. After that, click on the radio button for Off under Check apps and files. Once you’re done, try opening the file again. Don’t forget to enable the SmartScreen back on.
You might also want to utilize the Unblock-File command in Windows PowerShell as it will unblock the file so you can open it. To execute this command, follow these steps:

Windows 10 isn’t activated error occurs when Windows users attempt to upgrade to Windows 10 for free and end up in a non-activated state. It is a Windows 10 activation error affecting PC owners who attempt to upgrade their Windows 7 or Windows 8.1 operating systems. A message box will appear with the following message: “Windows 10 isn’t activated after upgrading for free from Windows 7 SPI or Windows 8.1 update.”
Common symptoms of this error code include the following:
Error CausesTo understand the cause of this activation error, users will need to understand activation within Windows. Activation is a process that allows Windows to verify that you are upgrading your operating system based on the Microsoft Software Licensing Terms. These terms specify, for instance, the number of devices upon which you can use Windows.
Once you have a genuine copy of Windows and you are following the terms mentioned earlier, you should be able to activate and complete the upgrade to Windows 10. However, the activation fails when these conditions are not met. Note also that the error may occur if users fail to upgrade to Windows 10 before reinstalling, requiring them to repeat the installation process by first going back to the previous version of Windows present on their system. Once the upgrade process is not done as should, you might encounter other Windows 10 errors such as error code 0xc0000142
If you see this error code, “Windows 10 isn’t activated after upgrading for free” proceed to rectify it using manual repair methods below.
To fix this activation error code in Windows 10, users will need to employ at least one manual repair procedure. This process can successfully be completed by non-technical Windows users. However, you may also consider getting assistance from a Windows repair technician if you are not certain you have the requisite skills needed to complete the manual repair tasks below.
The main methods to resolve the error code “Windows 10 isn’t activated after upgrading for free from Windows 7 SPI or Windows 8.1 update” is as follows:
If you attempted upgrading for free to Windows 10 and ended up with the activation error you will need to first perform a manual activation. Follow the steps below to complete the process.
The steps above enable users to successfully activate Windows 10 if the issue involves a connection problem. However, if Windows is not activated, it may mean your copy of Windows is not genuine. This may require you purchase a copy of Windows to rectify the issue. However, if you have a genuine copy of Windows proceed by applying the steps found in method two.
A valid product key is one way you can verify your copy of Windows is genuine. This will enable you to complete activation and allow you to access the free upgrade to Windows 10. Follow the steps below.
Error codes in Windows often occur due to poor maintenance of one’s PC. To improve your system and reduce your machine’s risk of experiencing error codes, download a powerful automated tool. This tool is both powerful and user-friendly, making its benefits accessible to even the most non-technical Windows users.
FullTab is a Browser Extension for Google Chrome, Firefox, and Internet Explorer. When installed this extension hijacks your home page, and changes your default search engine to http://search.fulltabsearch.com. This extension usually comes bundled with other freeware software, and while installed it monitors your internet browsing activity, visited links, clicked pages, and other private information that it later uses to distribute targeted unwanted ads in your search results.
While this extension is installed, you will see modified search results, injected ads, sponsored links, web page redirects, and sometimes even pop-up ads. Several anti-virus scanners have detected this extension as a Browser Hijacker, and due to the information it is gathering from your computer it is not recommended to keep.
iLivid is a video download manager for YouTube and other third-party video-hosted websites. iLivid download manager has powerful features that make it the fastest and easiest way to download hosted files. iLivid includes XBMC plug-ins that let you play almost all popular audio and video formats, in any available protocol and in any media type: streaming, CDs, DVDs, and RAR and archived files from your hard drive.
Livid is a program developed by Bandoo Media Inc. Upon installation, it defines an auto-start registry entry which allows the program to run on each boot for the user who installed it. A scheduled task is added to Windows Task Scheduler in order to launch the program at various scheduled times. The software is designed to connect to the Internet and adds a Windows Firewall exception in order to do so without being interfered with.
Multiple Anti-Virus scanners have detected iLivid as a possible Malware and are therefore not recommended.