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by Niharika

What Is a PEM File & How to Open and Create It 

November 6, 2026
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A PEM file, or Privacy Enhanced Mail, is a file format for storing and sharing cryptographic certificates and keys that play a crucial role in SSL/TLS certificates to secure web connections. While these files were initially used for secure email transfers, they now serve as certificate files that enable encrypted communication across platforms and improve cybersecurity.

This article walks you through what a .pem file is in detail, how to create it, and how to open it.

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What Is a PEM File

A PEM file, or Privacy Enhanced Mail, is a file format that contains cryptographic data, such as private keys, SSL/TLS certificates, and trusted certificate authorities. It allows storage of multiple certificate blocks in a single file and is generally used when applications need a whole certificate chain for installation. This Base64-encoded file is used in SSL/TLS configurations, SSH protocols, and servers for secure communications. Saved in ASCII format and easily read/edited with a text editor, PEM files have extensions such as .pem, .cer, .crt, and .key.

How to Create a PEM File

You can create a PEM file using OpenSSL. OpenSSL is an open-source toolkit for generating and working with PEM files. Below is how to use it.

  • Generate the private key openssl genrsa -out private.key 2048 and save it to private.key. For higher-security environments, use 4096-bit.
  • Generate a self-signed certificate openssl req -new -x509 -key private.key -out certificate.crt -days 365. OpenSSL prompts you for your country, domain (Common Name), and organization name. The -days 365 specifies the certificate’s validity period.
  • Convert private key to PEM openssl rsa -in private.key -out private.pem.
  • Convert certificate to PEM openssl x509 -in certificate.crt -out certificate.pem.

After creating a PEM file, you can open and view it easily.

Also know: Best Methods to Save a Word Document as a PDF File

How to Open and View a PEM File

To open and view a PEM file, you can use a text editor or the OpenSSL command line. Below are both methods explained.

Opening and viewing a PEM file using a text editor

Since a PEM file is text-based, you can open it in any of the best text editors, such as Notepad on Windows or TextEdit on Mac. Once you open the PEM file in the desired text editor, the file appears in Base64 encoding.

Using the OpenSSL command line

OpenSSL is a tool for easy PEM file management and viewing. OpenSSL commands provide complete information about the keys, certificates, and other details in PEM files. Use the OpenSSL command openssl x509 -in filename.pem -text -noout to get PEM file contents in the terminal.

However, if you experience any issues with the PEM files, you can check the guide below for solutions.

Also know: How to Fix ERR_SSL_PROTOCOL_ERROR in Chrome

Common PEM File Errors and Solutions

Below are some common issues with PEM files and how to fix them.

  • PEM file is rejected during installation: The PEM file may be rejected during installation due to an incorrect certificate order. To fix this issue, use the correct order for the target scenario to rebuild the PEM file.
  • Trust chain errors: Trust chain errors occur because of an incorrect intermediate or root certificate. To fix this, download the correct root and intermediate certificates.
  • SSL/TLS service fails to start: The SSL or TLS service may fail to start because the target application may need the private key in the PEM file. To troubleshoot this problem, create a PEM file with the private key and certificate chain if needed by the application.
  • Invalid PEM file format: Invalid PEM file format may be a result of missing BEGIN or END tags. To fix this issue, verify that every key and certificate block has the necessary BEGIN and END lines.
  • Trust warnings: If installation succeeds but trust warnings persist, the PEM file may have an incomplete or incorrect chain. To solve this problem, check the chain requirements for the target app and rebuild the PEM file with the correct certificate.
  • Unable to load certificate: The certificate may be corrupted or invalid. To fix this, re-export the certificate from its source or request a new certificate.

Below are a few common questions answered about PEM files to clear up persistent doubts.

Frequently Asked Questions

Q1. How to generate a PEM file?

You can generate a PEM file with OpenSSL, a popular tool for creating and working with PEM files.

Q2. Is a PEM file the same as a CER file?

No, a PEM file and a CER file are not the same. PEM is a text-based format for SSL certificates; it is Base64 encoded, and you can open it in any text editor. CER files only contain the SSL certificate without a private key.

Q3. Is a PEM file the same as a CRT?

CRT, like CER files, contains only the SSL certificate and not a private key; PEM contains both the SSL certificate and a private key.

Hopefully, this clears up all your doubts about PEM files. If you have any pending questions or concerns, leave us a comment.

Author

Niharika

Niharika is a passionate soul who finds immense satisfaction in putting all her thoughts in writing. Being a technology enthusiast, she loves learning new things about tech and making everyone technologically literate through her articles. When not composing tech articles, you can find her bringing characters to life in her fictional stories, reading something intriguing, or spending time with her near and dear ones.

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How to Fix Minecraft Run Out of Memory

How to Fix Minecraft Run Out of Memory (Easily)

February 19, 2024
0

Are you annoyed with memory issues on Minecraft? If yes, worry not, as here are the sure-shot solutions to this problem.

Developed by Mojang Studios, Minecraft has been a favorite of millions across the globe for over a decade. It has ruled the gaming world as one of the most immersive sandbox games. You can spend hours creating a place of your imagination in Minecraft. However, disappointingly, Minecraft has run out of memory for some users.

Are you also one of those unhappy users who are struggling to fix this annoying issue? If yes, this article is here to bring back the Minecraft fun for you. Here, you are going to learn the tried and true solutions to your problem.

However, let us first look at the factors responsible for Minecraft memory error before trying to fix it to make troubleshooting easier.

Why Minecraft Has Run Out of Memory

Below are the top factors that may have led to the Minecraft memory problem.

  • Interference from background programs
  • Not enough memory is allocated to Minecraft
  • High resource consumption due to high in-game video settings or mods
  • Outdated or corrupted Java version
  • Corrupted Minecraft installation

After learning the causes, let us discuss how to fix Minecraft has run out of memory issues.

Fixes for Minecraft Has Run Out of Memory Issue (Quick and Easy)

You can follow the below solutions to the memory error on Minecraft.

Fix 1: Try allocating more memory to Minecraft

Since the error message indicates that Minecraft does not have enough memory, allocating more memory to the game can fix the issue. Here is how to allocate more RAM to Minecraft.

  • To begin with, open your Minecraft launcher.
  • Secondly, select Installation.
  • Choose the Latest Release from the available options.
  • Now, select the three dots and choose Edit.Try allocating more memory to Minecraft
  • You can now navigate to MORE OPTIONS.Try allocating more memory to Minecraft - more option
  • Now, navigate to the JVM ARGUMENT code and change its Xmx value to the amount of memory you wish to allocate to Minecraft.Try allocating more memory to Minecraft - JVM argument
  • Click on the Save button after completing the above steps.
  • Lastly, restart Minecraft to check if the issue is resolved. Do not lose heart if the problem remains unresolved. There are more ways to solve it.

Also Read: Best Minecraft Launchers (Completely Free)

Fix 2: Close background programs

The background applications running on your computer can hog up resources and interfere with the game’s functionality and might be the reason Minecraft has run out of memory. Hence, you can follow the below steps to close all background programs to solve the problem.

  • To start with, use the keyboard shortcut Ctrl+Shift+Esc to get the Task Manager on your screen.
  • Secondly, sort the processes by memory to find the resource-hogging processes.
  • Now, locate the processes you can close.
  • Right-click on the identified processes and End task one by one.Close background programs - end task
  • Lastly, open Minecraft.

Fix 3: Reduce your video settings

Though high video settings make pictures attractive, they pressurize the computer unnecessarily. Due to high video settings, your computer needs additional resources and has to work more to deliver the desired results, resulting in problems like the one you are experiencing. Hence, you can lower your video settings by following the below directions.

  • Firstly, launch Minecraft.
  • Secondly, choose Options from the available options.Reduce your video settings - options
  • You can now navigate to the Video Settings.Reduce your video settings
  • Now, change the video settings as given below.
    Graphics: Fast
    Smooth Lighting: OFF
    3D Anaglyph: OFF
    VSync: OFF
    View Bobbing: OFF
    Clouds: OFF
    Max Framerate: A lower value
  • After changing the settings, you can launch Minecraft on your computer.

Also Read: How to Make Minecraft Run Faster on Windows 10, 11 PC

Fix 4: Try updating your Java version

Outdated or corrupted Java often leads to issues such as Minecraft has run out of memory. Hence, you can download and install Java updates to fix the issue.

Fix 5: Delete unnecessary Minecraft mods

Mods enhance Minecraft’s functionality. However, they also consume significant resources, leading to the issue you are trying to fix. Hence, you can follow these steps to remove unnecessary mods.

  • To begin with, click on the Start button present on the taskbar.
  • Secondly, input %appdata% in the search box on your screen.
  • You can now open the .minecraft folder.
  • Launch the Mods folder.
  • Lastly, delete all mods you do not need.

Also Read: How to Make a Minecraft Server | Minecraft Server Hosting Setup

Fix 6: Delete the unused game Worlds

The more and more Minecraft Worlds you create the more challenging and entertaining the game becomes. However, these Worlds consume a lot of memory. Hence, you can delete the Worlds that are unused, or you have already played by following the below steps.

  • Firstly, open Minecraft on your PC.
  • Now, choose Single Player from the home screen.Delete the unused game Worlds - single player
  • You will now get a list of all Minecraft Worlds on your computer. You can choose the one you wish to delete.
  • Now, choose Delete from the bottom of the on-screen Minecraft window.
  • Click on Yes to confirm the mod deletion.
  • Lastly, repeat all the above steps until you delete all unused Worlds.

Fix 7: Update Minecraft to the latest version

Random bugs and compatibility issues can be a reason Minecraft has run out of memory. Hence, you can update to the latest version of the game to solve these problems. Here are the steps to do it.

  • Firstly, right-click the Minecraft launcher on your desktop and choose the Run as administrator option.Minecraft launcher on your desktop and choose the Run as administrator option
  • Now, click the drop-down menu present alongside the play button.
  • Choose the Latest release.
  • You can now choose to Play the game to update Minecraft automatically.Play the game to update Minecraft automatically

Also Read: [Fixed] Minecraft Won’t Launch On Windows 10 {Quick Methods}

Fix 8: Uninstall the game and reinstall it

Reinstalling Minecraft fixes random bugs that may have caused the memory problems. Hence, here are the steps to uninstall and reinstall Minecraft on your PC.

  • To begin with, use the Windows+X shortcut to get the Quick Access menu on your screen.
  • Secondly, select Apps and Features from the available menu.
  • Now, locate Minecraft in the list of applications.
  • Click on Minecraft.
  • You can now click on the Uninstall button and complete the uninstallation.Uninstall the game and reinstall it
  • After the uninstallation completes, reinstall the game from Minecraft’s official website.

Minecraft Has Run Out of Memory Fixed

You can try the above fixes to get rid of all the issues plaguing your Minecraft experience. However, if you have any difficulties solving the problem or have any suggestions about this write-up, you can drop your queries and thoughts in the comments section. We will be glad to help and will be back soon with fixes for some other annoying tech problems.

Also Read: How to Update Minecraft in Windows 10?

6 Essential Computer Maintenance Tips to Keep Your PC Safe in 2024

January 2, 2024
0

A well-maintained PC is what we all desire. Take the help of the methods listed and explained in this simple guide on Computer Maintenance Tips and maintain your PC to its most optimal state with ease. 

Computers are an essential component of your day-to-day life, and you can do a great deal with a personal computer (PC), including, but not limited to, surfing the Internet, watching movies, playing games, managing your job, and so on. Regular maintenance of your personal computer is vital to guarantee that it operates without any hiccups.

If you have ever had to spend a lot of time cleaning a nasty virus from your computer, lost vital data because your hard drive crashed, or fried a CPU because you didn’t clean the fan, then you probably have a good understanding of why it is necessary to maintain your computer.

If you are one of the users who uses a computer regularly, it goes without saying that you want the system to be at its best at all times. If you are one of the users who uses a computer frequently, you want the system to be at its best. So you give a lot of attention to the upkeep of your personal computer. In this piece, we will go over some fundamental and straightforward Computer Maintenance Tips that even inexperienced users may do.

Top Computer Maintenance Tips to Enhance Your Device

Here are some of the best and Essential Computer Maintenance Tips that will allow you to improve the performance of your Windows device.

Tip 1: Please Do Not Overload Your Device Battery

The first one of these Computer Maintenance Tips is one of the most important ones ever. If you are working off of a laptop, the temptation to let the battery charge all night may be strong. Once the battery has reached its maximum capacity, unplugging the device is one of the most effective methods to keep it in good condition for a lengthy period of time.

This is true despite the fact that doing so will not harm the device. If you won’t be using the gadget for at least a month, you should take the further step of completely removing the battery so that you can give it a longer shelf life.

Also Read: My Computer is Frozen and Control Alt Delete Not Working: Fix

Tip 2: Make Sure Your Device Doesn’t Become Too Hot

Let’s have a look at the next Computer Maintenance Tips. Install your personal computer in a part of your workplace or house that has enough ventilation, leaving two inches of free space on each side of the device. By allowing your gadget some breathing area, you may help prevent it from overheating, which can prolong the life of your device.

It’s important to maintain your desk space clean and clutter-free in order to prevent your computer from overheating, which may be caused by piling papers and other stuff on top of it.

Tip 3: Conduct Checks for Viruses on a Regular Basis

If you have a sophisticated antivirus program already installed on your personal computer, you will be protected against the harm that viruses do in the event that you become a victim of a malware assault. Malware attacks may occur at any given time. Scans with your antivirus software once a week will guarantee that your machine is never infected with harmful malware. Your machine will be analyzed during a fundamental scan to look for any obvious threats or suspicious behavior.

So, here’s the next one of the Computer Maintenance Tips. People who use the internet often and download applications and data on a regular basis should think about running virus scans twice a week at the very least. It is best to err on the side of caution at all times, but this is particularly true when your personal information could be in danger.

Infections with malware may reduce the efficiency of your computer and make your private information accessible to third-party attackers.

Also Read: How to Defrag A Computer Hard Drive in Windows 11, 10, 8, 7

Tip 4: Clean Your Device’s Storage Regularly

Your computer will gradually accumulate a substantial quantity of data that is not required, such as temporary files, thumbnails, web pages, outdated installations of Windows, and a great deal of other data. Because there is a large amount of data in use, the computer may begin to perform more slowly.

A fantastic piece of advice or the next one of the essential Computer Maintenance Tips is to clean your drive. You have the ability to seek assistance from the Disk Cleanup tool inside Windows. You can keep your personal computer running quickly and clutter-free by using PC Cleaner software to remove unnecessary files from the Windows operating system.

These unnecessary files might include cache, logs, fragments, temporary files, and more. These items can take up a lot of space, lead to software failures, and slow down the system. Using a duplicate file finder will also help you with this task. Such a tool will help you find similar and duplicate files and then delete them easily.

Tip 5: Update the Drivers of Your Device

Yet another amazing way to enhance the performance of your device and keep it stable is to update the divers. This is amongst the most important Computer Maintenance Tips as it can easily enhance the system performance. You should update the drivers on your device regularly. To execute this task manually, you need to either visit the official website of the device manufacturer and find the required driver or take the help of the Device Manager. Both of these tasks are quite complicated.

Win Riser Update the All Outdated Driver Click On Fixes Now

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A smart and advanced solution is to use a Windows driver updater tool. Win Riser is amongst the best ones in this category. The tool is very easy to use and allows you to update all kinds of device drivers with a single click. Additionally, the tool offers multiple other beneficial features like Malware Removal, Junk Cleaning, etc.

Also Read: How to Fix Computer and PC Freezes Randomly (Top Fixes)

Tip 6: Fix Registry Entries

Ending this guide on some of the best Computer Maintenance Tips, we have the last one here. When you use the PC for a long time, the Registry entries can corrupt or damage. Registry Entries allow the OS to work in a proper pattern, hence corruption of such entries will result in a slowed and ill-performing PC. However, there is an easy fix for this issue. To fix the registry entries, you can take the help of a registry cleaner and fixer. On the internet, you will find a plethora of such cleaners and fixers. So, download and use as required.

Essential Computer Maintenance Tips: Summed

Your computer, like your car, has to be serviced on a regular basis if you want it to continue to function effectively. Performing routine maintenance on your computer may significantly increase the device’s lifetime, and it can also help to protect you from any hazards. You will be able to operate on an operating system that is both quicker and in better health if you just complete a few simple procedures.

Maintenance of computer hardware and software is not a job that everyone enjoys doing, but it is essential to ensure that your computer continues to function without any hiccups. We are pleased to provide you with further guidance and recommendations on how to take the best possible care of your computer and some further Computer Maintenance Tips if required.

Just communicate with us using the comments sections below.

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