Software review series: Wolfram Mathematica

Hello everyone, I hope you are all doing well. Today we will be changing the Windows Lock Screen background. Changing the lock screen background is a very easy task and it can be done in a very short time. So let's jump right into it. The first thing you need to do is to press the Windows start button on the bottom left and then press settings. Once the settings screen appears, choose and click on Personalization. Inside personalization, click on the Lock Screen tab. On the right screen, under the picture, you will find Windows spotlight, click on it to bring a drop-down menu up. Your choice is presented as a single picture for background or slideshow, a series of pictures that are going to be looped in a given time interval. If you would like just a single picture for your background, choose that and click on it. Once you are in choose picture dialog, click on the browse button and navigate to the picture on your storage which you would like to have as a background. If however, you fancy slideshow as your lock screen background, click on the background drop-down menu and choose the slideshow. Next, click on add a folder and navigate to a folder where you have pictures that you would like to have as a slideshow for your Windows lock screen.

The new thing from Mozilla is not a browser, it is a VPN!

Besides Firefox, Mozilla offers now Firefox Relay, an app helping you to mask your email and phone number, and a new Mozilla VPN.

Mozilla has recently announced a new subscription model that will let you use all products together for $6.99 per month. Although this is a little more expensive than the competition that goes around for $5 per month note that with this subscription you are having access to all services, not just VPN.

VPN will not only hide your IP address but will also make sure websites cannot access your real location and it encrypts all of your network activity. Relay will give you protection against spam, serving as a shield for your email and limiting spammers from access to your real email address and phone number. With Mozilla subscription will let you use both services.

If you are facing a missing sechost.dll error in your Windows 10, welcome, you have come to the right place to solve it and get back your computer in working order. Sechost.dll is a file that allows other programs to function and complete their tasks as well as control and change the behavior of other programs. The file is found in Windows subfolder System32, it is a completely safe file and should not be deleted. Sometimes however various other reasons can corrupt it or delete it. This guide will lead you to common solutions on how to get file back up and running.

1. Update device driver

   Have you installed a new device and all of a sudden you get the error message that Sechost is missing? Update device driver, it is possible that the file has been corrupted or replaced with an older version and therefore reported as missing. Update device driver to lastest version and issue should run away.

2. Re-register file via command prompt

   If Sechost got corrupted re-registering will solve the issue, press ⊞ WINDOWS + X and choose Command prompt (administrator), click on it. type regsvr32 sechost.dll and press ENTER Reboot your PC

3. Reinstall application

   Usually, Sechost gone bad or missing is due to the installation of another application that corrupts the file. Reinstall the application to try to solve errors. In order to properly reinstall the application first use the control panel to remove it completely from the system and then install it again, hopefully, this time correct version of Sechost.dll will be installed in the system.

4. Check your hard drive

   In some cases, a hard drive malfunction can cause several files to be corrupted or gone missing. To eliminate hard drive malfunction run check disk from Windows on C drive to check it and find if there are any errors.

5. Uninstall Windows update

   Same as with some application, even Windows update could corrupt some files due to update not being properly downloaded. Try uninstalling the latest update and revert to the previous Windows state, then update it again.

Website breaches and stealing user data is nothing new in the world of the internet. Although a very unpleasant experience it still happens even on some high-quality websites. In this article, we will not focus on how can you not be the target of this kind of attack, because you really cannot. Weel you can kind of if you decide not to have your data on websites at all, but let's just say that is not something you are willing to do.

So, in this case, you have some social, forum, or gaming accounts but you heard that service has been breached and that your email or password might be stolen. Well in this case all you need to do is of course to login into the service and change your password. But, what happens if you are not aware at all that service has been compromised?

Mozilla foundation has asked themselves this same question it seems and they have decided to help us out. They have placed a free online service where you can just by typing in your email address find out if your email or data has been compromised in any way.

Go to https://monitor.firefox.com/ and check it out, if you find out that there is some website that you did not know was breached, change your password right away, and if you have used the same password for anything else (I hope not), change them as well.

Next-generation of RAM, DDR5 supposed to hit shelves around late summer or fall in 2021if everything goes as planned. Its goal is to increase speed and efficiency, wants to pack more memory in a single stick, and have better power management.

Hardware requirements for DDR5

Using the latest memory technology will require other hardware to follow certain standards and the first ones that will need to follow are CPUs and Motherboards. Intel is already prepared with its Alder Lake CPUs that suppose to come out also later this year. AMD on other hand has not stated anything at the time of this writing but it is a bet that their next generation that will come in 2022 will have full support. It is speculated that bot companies and their respective CPUs will have both support for DDR4 and DDR5. A story about motherboards is a little different. Motherboards will support DDR4 or DDR5 memory banks, not both, so make sure that your motherboard will support the memory you plan on getting.

Capacity of memory

The goal and aim for the DDR5 memory stick are to reach a whopping 126GB per stack. This will be done by using a dual in-line module or DIMM enabling larger capacity. That being said, the first modules that we will see are more likely to be 16GB as standard and 8GB as low entry ones.

Power consumption of DDR5 memory

The standard voltage that DDR4 operates under is 1.2V. DDR5 wants to lower this to 1.1V without sacrificing speed. Voltage regulation on modules themselves will be now integrated on memory banks instead of leaving that to motherboards which will help to detect memory errors directly on the memory bank.

Speed of memory

The most common speed of DD4 memory banks is 2,666MHz, more expansive ones go from 3,600 to 4,000MHz. DD5 aims to raise this bar to 4,800MHz and offers greater speed.

Should you get it right away?

Hardware is ever-evolving, we have PCIe 3.0 to PCIe 4.0, and taking into account that sometimes the newest tech can cause some unexpected behavior it is always the best strategy to wait for a little. Price for the newest tech has also been in its heist just when it is released and seeing how DDR5 will benefit mostly servers mostly since even today memory, processors, and other available equipment can tackle all daily tasks.

What is Solimba?

Solimba is a bundled executable program. It was created to be launched as a promotional tool to get advertisements loaded on a user’s system, upon installation. As a bundle, Solimba offers installation of various programs, with the objective of promoting various products and services. It utilizes unethical techniques, as in the case with adware tactics to influence or for want of a better word, hijack an Internet Browser to affect a website’s result on a search results page. In this assessment, Solimba distributed ads on Internet Explorer, Chrome, and Mozilla browsers, by hijacking various Internet Browsers to change the user's experience. (Images are shown below) Technical details about Solimba PUP include:

Digital Signature:  POPELER SYSTEM, S.L. Entry Point:   0x0000C1DC

Assessment of Solimba Potentially Unwanted Program

Solimba PUP is all about the ads. Once this executable is installed, it penetrates your computer system and sends ads all over your Internet Browser – Chrome, Internet Explorer, Mozilla Firefox, and the likes. For this assessment of Solimba.exe PUP, two installations were carried through. In layman's terms, I actually installed Solimba on two occasions to decipher the true nature of the PUP. It was shocking to find that both installations revealed different bundled programs and advertisements. In the first instance (as shown below), Solimba proved more aggressive in featuring ads for revenue advancements.

 Solimba employed aggressive advertising techniques

It’s important to note that hijacked results resulting from the installation of Solimba. This affected the results of the website on the Internet browser to boost its ranking, even without the use of a search engine. The advertisement displayed on the Internet Explorer search page routes the user to a software installation website. The utility tool in question was a “Windows 8.1 PC Repair” tool used to identify threats present on the Windows 8.1 OS. The advertisement displayed on the Chrome Browser search page routes the user to a health and beauty magazine website. This site advocates health and beauty, especially issues concerning weight loss. Several ads were visible on-site, displaying products to assist people in losing weight. During my installation of Solimba, the installation wizard underscored that four programs would be downloaded. These programs included N8Fanclub.com_KinoniRemoteDesktop, Lolliscan, PaceItUp, and SearchProtect. Interestingly, only two programs from the list were apparent or obvious. An N8Fanclub.com_KinoniRemoteDesktop file was made on the Desktop and SearchProtect was seen in “All Programs”, along with files stored on the computer’s Local Drive. The other programs that were “supposedly” installed remained concealed. A test was done to determine whether these were counted as extensions or add-ons to the varying web browsers but nothing was found on any of the tested browsers – Google Chrome, Internet Explorer, and Mozilla Firefox.

Description of 4 Installed Files

N8Fanclub.com_KinoniRemoteDesktop

When this file was initially found on the Desktop, a rootkit came to mind. A rootkit was used as a means to an end. Whoever was on the receiving end of this unwanted file would be able to connect to an infiltrated system without the knowledge of the user. After running the file to determine its behavior, nothing much happened. A message appeared indicating that the software couldn’t execute on the computer. That was pretty tricky since, to begin with, I didn’t place that specific file on the desktop but it came along with the territory and so I had to accept it. Further research online into N8Fanclub.com_KinoniRemoteDesktop proved very rewarding. A search of the entire file name was not able to do the trick so I had to do research on both terms separately. After landing on N8Fanclub.com, I was nicely asked to disable my adblocker. There seemed nothing harmful about the site. However, due to the fact that it was not what I initially installed, the program was an unwanted program. That’s exactly what Solimba does. It installs several other programs that were not requested by the user in an attempt to make money from advertising. The mere fact that this program got installed meant that it was to promote an online service.

KinoniRemoteDesktop

was a separate program. It was combined with N8Fanclub as a way to allow users to use their PC computer “as if they were sitting in front of it.” A user would be able to make use of a full web browser, watch Flash videos, play games, and even use office applications. This would be done from the user’s Nokia device. This is an advertisement at its best.

Lolliscan

This program did not allow me to see much since it didn’t leave a physical trace behind. However, during the installation, Lolliscan was listed as one of the four programs that would be installed. Overall, Lolliscan supposedly should be able to save people money since this form of the ad focuses on showing coupons when visiting sites such as Amazon. While this seems like a good deal, this ad will invade your personal space and distribute pop-ups at the most inopportune times.

PaceItUp

As the name states, PaceItUp is software added to a browser with the intent to speed your computer. Quite the contrary, PaceItUp does the total opposite since it installs bundled programs that slow down a computer system. PaceItUp is also known for displaying ads and tracking what the user does on his/her computer system.

SearchProtect

It’s known for hijacking your computer’s homepage. In fact, this addition is very stubborn and often possesses a challenge when a request to uninstall is made.

Further Information on Solimba

The second installation of Solimba also had its own dose of bundles to display. In comparison to the first installation, two programs from the bundle were different while two remained the same. two additional programs were installed along with the second installation of this bundle. These were dubbed Optimizer Pro and GamesDesktop. SearchProtect and N8Fanclub.com_KinoniRemoteDesktop remained triumphant and unbeatable. They were repeated within the installation. To completely remove Solimba from your computer, click here to download and install Spyhunter.

Pinned Windows 10 Taskbar Items. One of the most used interfaces in the Windows environment is the Taskbar. It is where users like to pin their most-used programs as well as shortcuts with extra privileges and automated tasks. In fact, it’s a lot better than the Start Menu. So if any Windows Update messes up with your computer, or if you’ve just switched to a different computer, setting up the Taskbar with the very same set of programs you used to have is definitely not an easy task. But worry not as this post will guide you on how you can backup and restore the items on your Taskbar either manually or automatically.

Manual Backup:

• Tap the Win + R keys to open the Run prompt.
• Then type “%AppData%MicrosoftInternet ExplorerQuick LaunchUser PinnedTaskBar” in the field and hit Enter to open the folder where you can see all the shortcuts or pinned items in the Taskbar.
• After that, copy all the files in the folder and paste them somewhere else as a backup. For instance, E:\Pinned Items Backuppinnedshortcuts.
• Next, tap the Win + R keys to open the Run prompt once more, and then type “Regedit” in the field and hit Enter to open the Registry Editor. When the User Account Control dialog box appears, click Yes.
• After opening the Registry Editor, navigate to this key – HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionExplorerTaskband
• Then right-click on the Taskbar folder and select Export.
• Now save the file with the .reg extension to another location like the E:\Pinned Items Backup folder and then name it.
• Close the Registry Editor.

Manual Restore:

Make sure to copy all the files to one of the drives if you are using another computer and then refer to the following steps.

• Tap the Win + R keys to open the Run prompt.
• Then type “%AppData%MicrosoftInternet ExplorerQuick LaunchUser PinnedTaskBar” in the field and hit Enter to open the same folder where you just copied all the shortcuts. Make sure to keep it open.
• Then open the backup folder where you saved all the pinned items and copy all the files there.
• Next, go to the Taskbar folder (%AppData%MicrosoftInternet ExplorerQuick LaunchUser PinnedTaskBar) and then paste your files in there. If you encounter a problem while doing so, just replace it with your own set of files.
• After that, go to E:\Pinned Items Backuppinnedshortcuts and then double click on tb-pinned-items.reg. If a User Account Control prompt appears, click Yes. This will add the registry file into the main registry hub. You will also get a dialog box that will confirm that data has been added to the registry successfully. Click OK.
• You should now see the items on the Taskbar. You have to restart Windows Explorer. To do so, end its process in the Task Manager.

Automatic Backup:

Backing up and restoring the pinned Taskbar items in your Windows 10 computer can be done automatically as well. But before you get started on the process, you need to understand what’s going on behind the hood first. First, you need to create two bat files and name them “Backup Pinned Taskbar Items” and “Restore Pinned Taskbar Items”. After you have that covered, refer to the following steps:

• Open the Notepad app and paste the following details and save it as “Backup Pinned Taskbar Items.bat.

REG EXPORT HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionExplorerTaskband “E:\Pinned Items Backuptb-pinned-items.reg” xcopy “%AppData%MicrosoftInternet ExplorerQuick LaunchUser PinnedTaskBar” “E:\Pinned Items Backuppinnedshortcuts” /E /C /H /R /K /Y

• After that, run the newly created bat file with admin privileges.

Automatic Restore:

• Open the Notepad app and paste the following details and save it as “Restore Pinned Taskbar Items.bat”.

REGEDIT /S “E:Pinned Items Backuptb-pinned-items.reg” xcopy “E:Pinned Items Backuppinnedshortcuts” “%AppData%MicrosoftInternet ExplorerQuick LaunchUser PinnedTaskBar” /E /C /H /R /K /Y

• After that, run the bat file with admin privileges.

Note: Just so you know, there is a drawback to this process as we’ve noticed that any pinned apps that were downloaded from the Windows Store don’t appear in these places and any items downloaded and installed separately from the internet and then pinned.

Windows 10 and Windows 11 have automatic dynamic screen brightness depending on the surrounding light inside the room. Please take note that this option is available only on devices with build-in screens like laptops, tablets, and all in one desktop PC. If you are connected with your PC via an external monitor you will not have these settings available and probably feature is not even working.

Some computers will also allow automatic brightness changes also on what is displayed on the screen. This option is meant to save battery life on devices. Microsoft calls this automatic brightness feature Content adaptive brightness control. In order to change this setting, we will go to settings inside Windows.

Disabling automatic brightness inside Windows

Open Settings inside Windows, in Windows 11 press WINDOWS + I to open settings, then click on the system in the sidebar and then go to Display. Click on the small arrow beside the Brightness slider in order to expand a small menu and then uncheck Help improve battery by optimizing the content show and brightness. If you see Change brightness automatically when lighting changes, uncheck that as well. Close the settings and you are good to go, now brightness will always be as set in settings.

Inside Windows 10, go to Settings and then go to System and then in Display under the Brightness and Color section look below and locate the box that says Automatically adjust contrast based on the displayed content to help improve battery and uncheck it, if the box below with text Change brightness automatically when lighting changes exists, uncheck it as well. Close settings and you are done.

If you are trying to install or reinstall a program on your Windows 10 computer but encountered an error instead that says, “Fatal error, Installation fails, Installation ended prematurely because of an error”, then you’ve come to the right place as this post will guide you how you can fix it. This kind of error is most likely caused by some files that may have been left behind by the previous installation of the program. Each time a program is uninstalled, it leaves behind its files and if the uninstallation process wasn’t completed properly, then it would result in errors like the

“Fatal error, Installation fails, Installation ended prematurely because of an error”.

Moreover, this kind of error is a generic one that can also occur with any software reinstallation or installation. And to fix this error, there are several suggestions you must check out. You can try to install or reinstall the program in a Clean Boot State or restart the Windows Installer Service. You could also try to re-register the Windows Installer Service or re-register the VBScript.dll file.

Option 1 – Install or reinstall the program in a Clean Boot State

It is possible that there are some third-party applications in your computer that are preventing the program from getting installed and to isolate this possibility, you need to boot your computer in a Clean Boot State and then try installing the program again. Putting your computer in this state can help you identify which program is the culprit and thus isolates the problem. In a Clean Boot state, your computer will start using only the pre-selected minimal set of drivers and startup programs. Note that you have to disable and enable one process at a time.

• Log onto your PC as an administrator.
• Type in MSConfig in the Start Search to open the System Configuration utility.
• From there, go to the General tab and click “Selective startup”.
• Clear the “Load Startup items” checkbox and make sure that the “Load System Services” and “Use Original boot configuration” options are checked.
• Next, click the Services tab and select the “Hide All Microsoft Services” checkbox.
• Click Disable all.
• Click on Apply/OK and restart your PC. (This will put your PC into a Clean Boot State. And configure Windows to use the usual startup, just simply undo the changes.)
• After you’ve set your computer into a Clean Boot State, make sure that you’re signed in as administrator and then try to install the program again.

Option 2 – Try to restart the Windows Installer Service

The next thing you can do to fix the problem is to restart the Windows Installer Service. To do this, follow these steps:

• Tap the Win + R keys to launch the Run utility and type “services.msc” in the field and then hit Enter to open the Windows Services Manager.
• Next, look for the Windows Installer service among the list of services shown.
• Once you found it, right-click on it and open its Properties.
• From there, click on the Stop button and then click on the Start button.
• But if it isn’t running, then just click on the Start button.

Option 3 – Try to unregister and re-register the Windows Installer Module

• Tap the Win + R keys to open the Run dialog box.
• Then type the “msiexec /unregister” command and hit Enter to unregister the Windows Installer Module.
• Next, type the “msiexec /regserver” command and hit Enter to re-register the Windows Installer Module.
• Now restart your computer and see if unregistering and re-registering the Windows Installer Module fixed the problem or not.

Option 4 – Try to re-register the vbscript.dll file

You may have to re-register the vbscript.dll file using the regsvr32.exe before you can successfully install the program and fix the error. The Regsvr32 tool is a command-line utility that can be used to register and un-register the OLE controls like DLL and ActiveX (OCX) control in the Windows operating system. Follow the steps below to use it.

• Open Command Prompt as admin from the WinX menu.
• Next, type regsvr32.exe vbscript.dll in the elevated Command Prompt and hit Enter to execute the command. This will re-register the affected DLL file using the Windows operating system tool, regsvr32.exe.
• You should see a message saying, “DllRegisterServer in vbscript.dll succeeded” if the Regsvr32 tool was able to run successfully. After that, try to install the program again and see if it now works.

If there are any third-party add-ons or proxy settings that interfere with your Windows 10 computer’s internet connection, then you will most likely encounter a problem where you see an error message saying, “Website is online but isn’t responding to connection attempts” when you try to run the Network Adapter troubleshooter. Like pointed out, this kind of error can be caused by some proxy settings that prevent the connection. On the other hand, it could also be caused by some third-party add-ons. To fix this error, read on as this post will guide you on what you can do to fix it. You can try to turn off the proxy settings or disable the add-ons on your browser. You can also try resetting both the TCP/IP and DNS as well as reset the network. For more details, refer to the options provided below.

Option 1 – Try to turn off the proxy settings

There are some users who reported that they’ve fixed the problem after they’ve disabled the use of a proxy server using the built-in way. Follow the steps below to disable the proxy server.

• Tap the Win + R keys to open the Run dialog box.
• Then type “inetcpl.cpl” in the field and hit Enter to pull up the Internet Properties.
• After that, go to the Connections tab and select the LAN settings.
• From there. Uncheck the “Use a Proxy Server” option for your LAN and then make sure that the “Automatically detect settings” option is checked.
• Now click the OK and the Apply buttons.
• Restart your PC.

Note: If you are using a third-party proxy service, you have to disable it.

Option 2 – Try disabling the add-ons or browser extensions

The next thing you can do to fix the problem is to disable any extensions or add-ons on your browser. For instance, if you are using Chrome, here’s what you have to do:

• Open Chrome and press Alt + F keys.
• Go to More tools and click Extensions to look for any suspicious browser extensions or toolbars.
• Click the Recycle bin and select Remove.
• Restart Chrome and press Alt + F keys again.
• Proceed to On Startup and mark Open a specific page or set of pages.
• To check if the browser hijacker is still active, click Set pages, if it is active, overwrite the URL.

Option 3 – Try to update the Network Adapter Driver

Follow the steps below to update your Network Adapter Driver:

• Tap the Win + R keys to launch the Run window and then type in the “MSC” command and hit Enter to open the Device Manager window.
• From there, expand the list of all the network drives and update each one of them.

Note: If updating the network drivers didn’t help in fixing the problem, you can also try to uninstall the very same drivers and restart your Windows 10 PC. After that, the system itself will reinstall the drivers you just uninstalled. Alternatively, you can also download and install the drivers from the manufacturer’s website directly.

Option 4 – Try to reset the TCP/IP and the DNS cache

As you know, the TCP/IP or the Internet Protocol is the most important thing if you want to use the internet on your computer. That’s why if it ends up getting corrupted, you need to reset the TCP/IP to fix the problem. To reset TCP/IP, refer to these steps:

• In the Windows start to search, type “command prompt” and right-click on Command Prompt from the search results.
• Then select the “Run as administrator” option to open Command Prompt with admin privileges.
• After that, execute this command: netsh int ip reset resettcpip.txt
• Next, execute this second command: ipconfig /flushdns
• Once it’s done, exit Command Prompt and restart your computer and then check if the error is now fixed.

Option 5 – Try to reset the Network

You can also try to perform a Network Reset to resolve the problem. This will reset the entire network configuration including your IP address. To perform Network Reset, follow these steps:

• Tap the Win + I keys to open Settings.
• From there, go to the Network and Internet section.
• Next, scroll down and look for “Network Reset” under the status pane.
• After that, click on Network Reset and then on Reset now to start resetting the network configuration. Once done, check if it is able to fix the error or not.