How to Fix Fatal Error c000021a

What is 0x8007043c Error Code?

Have you ever come across 0x8007043c error message pop up on your PC? If yes, then you should know that this error message is generated when any corresponding process or operation cannot be completed successfully by the application. This is a critical Windows OS Error message that should be fixed immediately.

Solution

Error Causes

The 0x8007043c error code is usually triggered by the following reasons:

• Missing or corrupt registry files
• Failure to update Windows Installer
• Viruses and Spyware

Common signs of this error code are pop-up messages, program lock-ups, problems with opening documents, and screen freeze.

Further Information and Manual Repair

As soon as you experience this error on your PC, it is advisable to repair it immediately because this error poses high-security risks. Malwares and viruses are notorious for data theft. To fix the 0x8007043c error on your PC, you don’t need to take on the services of an IT professional. This error code is rated as easy to repair. By following the instruction and repair solutions given below, you can easily fix this Window error 0x8007043c in a couple of minutes by yourself. Here’s what you need to do:

Step 1: Scan for Viruses and Spyware

To stop hackers from sneaking into your PC and stealing your confidential data, you must first scan your computer for viruses and spyware on your PC. It is advisable to use a powerful antivirus to ensure your computer is totally virus and spyware clean.

Step 2: Download and Install a Registry Cleaner

After you scan for viruses, you should now download and install a registry cleaner. This is needed because an antivirus does not detect corrupt registry entries. To detect such entries, the registry cleaner tool is the best. After you download a registry cleaner on your system, click the scan button. You will have to wait for a few seconds for the scanning to finish. Once the scanning is complete, click on the ‘Repair’ button to fix the errors. After fixing all the errors, restart your computer. This is important because the registry changes will only come into effect after the system restarts. By following these 2 simple steps, you can easily resolve the 0x8007043c error on your system. However, to prevent this error from occurring again, it is recommended to run the antivirus every time you use your PC.

System restore is usually the go-to tool when something goes bad in Windows, we fire it up and roll back Windows in the state when everything was working fine. But what if Windows does not want to boot? Can we use system restore in that case? The answer to that question would be yes, yes we can.

1. Boot interrupt Windows 10 by starting your PC and as soon as you see the Windows logo; press and hold the power button to force a shutdown.
2. Repeat this 2-4 times and Windows will open up the Advanced Startup Options menu for you.
3. At the Advanced Startup Options screen, select Advanced Options.
4. Select Troubleshoot.
5. Under the Advanced options screen, select System Restore.

or if you prefer, use Windows USB installation.

1. Boot the faulty PC using the Windows 10 installation media.
2. The Windows Setup dialog box will appear.
3. Set the Time and currency format, Keyboard or input method, and the language to install.
4. Click Next.
5. Click on Repair your computer from the lower-left corner.
6. From the Choose an option screen, click on Troubleshoot.
7. Click Advanced Options in the Troubleshoot screen.
8. In the Advanced Options screen, click System Restore.
9. Windows will take some time to prepare System Restore. It may even restart your computer or device.
10. When System Restore is ready, you will be prompted to choose a user account to continue.
11. Select an account that is set as administrator on your Windows 10 computer or device.
12. At the next screen, change the keyboard layout if you want and then input the password for that account.
13. Click the Continue button.

KMODE_EXCEPTION_NOT_HANDLED – What is it?

Some users installing or upgrading to Windows 10 experienced the theKMODE_EXCEPTION_NOT_HANDLED Blue Screen of Death (or commonly known as BSOD) error. This error can be due to different types of things, ranging from software to driver issues. When you experience this BSOD error while trying to install Windows 10, it will prompt you to restart your computer every single time you experience it. In most cases, you will also not be able to proceed with the Windows 10 set-up.

Solution

Error Causes

The “KMODE_EXCEPTION_NOT_HANDLED” error is normally caused by:

• Hardware incompatibility
• A faulty device driver or system service

Further Information and Manual Repair

You won’t be able to successfully upgrade or set up Windows 10 if you continue to encounter this BSOD error. Note that this error will always prompt your computer to restart every time it happens, preventing you from completing the Windows 10 set-up.

If you’re not tech-savvy or not capable of debugging this issue, it’s highly advisable to proceed with the basic troubleshooting techniques available in this link.

After troubleshooting, below you’ll find a few solutions to rectify the issue.

Method 1 – Check The Cause of The BSOD Error

Two common causes of the KMODE_EXCEPTION_NOT_HANDLED issue are hardware incompatibility and faulty device driver or system service.

If you experience this error, check first if any of your newly installed hardware is compatible with Windows 10. You can find the required hardware for Windows 10 from this link. 

If all your hardware is compatible with Windows 10, you might need to check the device driver or system service. Review the bug check message. If any of the drivers you have is listed in the message, either disable or uninstall them before upgrading or setting up Windows 10.

You might also find it useful to check the System Log available in the Event Viewer for other error messages that can help you figure out the driver or device that’s causing the error. Running hardware diagnostics can also be useful.

Method 2 – Disable (or preferably uninstall) Software Before Upgrading

If you’re upgrading Windows 10 from Windows 7 or Windows 8.1, you might need to disable or uninstall the software first. First, try uninstalling your Antivirus utility before starting the upgrade. Restart a few times before starting the Windows 10 installation. If you’re upgrading using the Windows 10 update, make sure that you disconnect from your Wi-Fi or Internet LAN (Ethernet) connection as soon as the download reaches 100% before attempting to start the set-up. Other users also reported that the cause of the KMODE_EXCEPTION_NOT_HANDLED issue is BitDefender. If this is what happened in your case, it will show in the error message such as KMODE_EXCEPTION_NOT_HANDLED (bdselfpr.sys). Users reported that a common solution for this is renaming the file. In the case of BitDefender, try renaming it to bdselfpr.s__. However, make sure to do this cautiously. Sometimes, renaming a file will even do more damage than good.

Method 3 – Disable/Disconnect From Hardware

If you’re connected to any general USB devices (such a smart card reader), disable it. If your computer is connected to other external devices, disconnect all of them. Examples of this include gaming controllers, printers, external hard disk, USB keys, and other non-essential devices).

Method 4 – Other Troubleshooting Steps

Other troubleshooting steps include:

• Upgrade using an .ISO file, instead of directly upgrading from Windows Update. When you do this, make sure you’re disconnected from the Internet during installation. If the process started and you forgot to disconnected, it’s best to restart the installation.
• If you’re connected to a domain while trying to set up Windows 10, disconnect and use a local account.
• If you’re using a SCSI hard disk, connect a thumb drive with the drivers for your storage device. While Windows 10 is setting up, click on the Custom Advanced Option. Using the thumb drive, use the Load Driver command to load the SCSI drive.
• Another possible cause of this error is due to BIOS incompatibility. BIOS issues can be solved by upgrading your version of your system BIOS. If you don’t know how to do this, refer to your BIOS manufacturer’s website.

Method 5 – Use A Trusted Automated Tool

If you still experience the error after doing the methods above, you might want to try a powerful and trusted automated tool to fix the job.

When we are working on our computer, we have tendencies to make it look and behave to our best needs and however, best suits us. The Internet has crawled into our lives and made itself a must-have in modern society, internet browsers as a crucial piece of software for viewing the web have also grown and made themselves to be more open for user settings and personalization, Chrome, one of the most popular browser has the option to open a specific set of pages one it is opened and that is what we will cover today in this tutorial. No matter would you like to by default open some online store, maybe an email or news website, you can open each of them or all of them once Chrome is run, making your daily routine more enjoyable and stress-free. The first thing, of course, is to start Chrome itself, once Chrome is up, click on three dots in the upper right corner of the Chrome window and select settings. When you are in settings, on the left side move toward the bottom until you run into a tab that says On Startup and click on it. On right, a new section will open, click on Open a specific page or set of pages. You will be presented with the option to add a new page by typing its URL or getting it from bookmarks or using a specific opened one. You can repeat this process until you have added all pages that you wish to be automatically opened once Chrome is opened for the first time.

BONUS:

If you have noticed right above the setting that we have used for opening a specific set of pages there is the option Continue where you left off, this option will open each page exactly where it was when Chrome was shut down letting you keep viewing where you have left off. This is useful if by any chance your battery ran out or you had to quickly turn the computer off for whatever reason.

intelppm.sys blue screen of death is linked to an outdated driver, if you received this error do not sweat we have simple solutions for you. Please keep on reading in order to find out what can you do to fix this error.

1. Update driver Go to the device manager and manually update old-dated drivers. Note that this will take some time because you will need to update each device manually through the device manager but in the end, it will fix the issue.
2. Use automated application Instead of going through each device one by one manually get a dedicated driver fixing device like DRIVERFIX and update all drivers automatically.

Error Code 0x80070490 - What is it?

When downloading a Windows update, it is important to remember that these updates are what keeps your computer safe. Some users have reported seeing error code 0x80070490 when allowing updates for their Windows PC. This error code may appear when the user is trying to connect to the update site for Windows and maybe a result of a corrupted CBS manifest. Having this error code will not only stop the update of the system, but it will also certainly halt any work being done with the computer. Quite a few Windows users have written in complaints about this error while updating from any prior Windows update to Windows 10.

Common symptoms include:

• While a user is performing the updates, the Windows computer will stop running the updates, and it will show the error code 0x80070490.
• Windows updates will not install any new features and will not install security patches.
• The computer will not continue with the Windows update, and it may revert back to the previous state that the computer was in, prior to attempting the updates.

Error Causes

There is not a lot known about what exactly causes the error code 0x80070490, but it is something critical that makes Windows abruptly stop its updates. It could be caused by a simple glitch in the computer system, or it could be caused by a larger problem. One thought is that the CBS (Component-Based Servicing) manifest can be corrupt. Another thought is that the computer's anti-virus software may be interfering with the computer's ability to perform the necessary updates.

Further Information and Manual Repair

There is very little information known about error code 0x80070490 and why it exists, but there are a few methods in which to correct it. Users should be careful when trying to fix this error themselves. If the user feels that the methods are too complicated or they are uncomfortable taking it on themselves, they should contact a Windows repair technician to fix the problem. Not all methods listed will suit the user's needs, but it is dependent upon the problem at hand as to which method will be the best fit to fix the error code. If these steps are taken and the error is not corrected, it is vital to contact the Windows repair technician.

Method One: Creating a new local account

Create a new local account on the computer, and allow administrator privileges on it. Next, move all of your documents and personal files to the new account. Delete the old account (you will no longer be using this) and switch over to the new one. After switching to the new local account, add the Microsoft account to it.

Method Two: Delete user ID, Store cache from the registry

• You will need to open the Registry Editor. Do this by pressing the Windows Key and R, then typing in “Regedit”. After this is typed in, press Enter or click the OK button to start the registry editor.
• When this starts, you will need to navigate all the way to the following key on the left pane:
• HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionAppxAppxAllUserStore After this, find the key that is similar to this: S-1-5-21-1505978256-3813739684-4272618129-1016
• NOTE: this is just an example. The keys will be in a similar format but will not look exactly like this.
• Select all the keys that look like this, and then delete them. After these keys are deleted, close the Registry Editor and restart the computer.

Method Three: Check to see if BITS, MSI Installer, Cryptographic, and Windows Update Services are running

Press the Windows key and R. Then, type in services.msc. After the Services window starts up, find the following services:  BITS, MSI Installer, Cryptographic, and Windows Update Services. When these services are found, make sure that they are up and running. If one or more of these services is not running, make sure that they are started. To do this, select the service and then click on Start the Service.

Method Four: Windows Update Troubleshooting

Press the Windows key plus W and then type in “troubleshooting”.  Select Troubleshooting. On the top left corner, select View All. Click on Windows Update troubleshooter. After this, follow the on-screen instructions in order to run the troubleshooter. After the troubleshooter has run, the issue should be fixed.

ListenToTheRadioNow is a Browser Extension that allegedly lets you listen to radio from your browser. However, all this extension does is add links to the popular radio stations on your home page. This extension hijacks your home page and changes your default search provides to MyWay. While running it monitors browsing data from your browser, mining information such as website visits, clicked links, and sometimes even personal information. This information is later used to display targeted ads through your browser. Several anti-virus scanners have marked this extension as a possible Browser Hijackers, and due to its data mining nature, it is not recommended to keep it on your computer.

About Browser Hijackers

Browser hijacking is a type of unwanted software, commonly a browser add-on or extension, which then causes modifications in the web browser’s settings. Browser hijackers could do more than just modifying homepages. In most cases, browser hijacking is used for earning ad revenue that comes from forced advert clicks and website visits. Even though it may seem naive, all browser hijackers are dangerous and therefore always regarded as security threats. They don’t just ruin your internet browsers, but browser hijackers could also modify the system registry to make your PC susceptible to other malicious programs.

How you can know whether the browser is hijacked?

There are several symptoms of browser hijacking: 1. home-page is changed 2. new bookmarks pointing to porn websites have been added to your bookmarks 3. the default internet search engine and/or the default web browser settings are altered 4. find new toolbars that you did not add 5. unstoppable flurries of popup ads show up on your PC screen 6. webpages load very slowly and often incomplete 7. you have prohibited entry to certain web pages, for example, the site of an anti-malware software firm like SafeBytes.

So how does a browser hijacker infect a PC

A browser hijacker could be installed on your computer or laptop if you visit an infected website, click on an e-mail attachment, or download something from a file-sharing website. They also come from add-on programs, also referred to as browser helper objects (BHO), browser plug-ins or toolbars. Also, some shareware and freeware can put the hijacker inside your computer through “bundling”. A good example of some popular browser hijackers includes Babylon, Anyprotect, Conduit, SweetPage, DefaultTab, Delta Search, and RocketTab, but the names are regularly changing.

Tips on how to get rid of a browser hijacker

Some hijackers can be removed by uninstalling the freeware they were included with or by eliminating any extension you’ve recently added to your computer. However, most hijacking codes are not very easy to eliminate manually, since they go deeper into your operating system. Furthermore, manual removal expects you to perform several time-consuming and tricky actions that are hard to do for new computer users. Professionals always recommend users to get rid of any malicious software including browser hijacker with an automatic malware removal tool, which is simpler, safer, and faster than the manual removal technique. One of the top tools for correcting browser hijacker malware is SafeBytes Anti-Malware. It can help you eliminate any pre-existing malicious software in your computer and provides you real-time monitoring and protection from the latest internet threats. Employ a PC optimizer along with your anti-malware software to correct various registry problems, remove computer vulnerabilities, and improve your computer overall performance.

Help! Malware Preventing Antivirus Installation And Access To The Internet

All malware is bad, but certain kinds of malware do a lot more damage to your computer than others. Some malware sits in between the computer and the net connection and blocks some or all internet sites that you want to check out. It will also prevent you from installing anything on your system, especially anti-virus applications. If you’re reading this, chances are you’re stuck with a malware infection that is preventing you to download and install the Safebytes Anti-Malware program on your computer. Do as instructed below to get rid of the malware by alternate methods.

Install the anti-malware in Safe Mode

Safe Mode is actually a special, basic version of Windows in which just minimal services are loaded to counteract viruses and other troublesome programs from loading. In the event, the malicious software is set to load automatically when the computer boots, switching to this mode may well prevent it from doing so. To start the computer into Safe Mode, hit the “F8” key on your keyboard just before the Windows logo screen comes up; Or right after normal Windows boot up, run MSConfig, check Safe Boot under Boot tab, and click Apply. Once you’re in Safe Mode, you can attempt to download and install your antivirus software application without the hindrance of the virus. After installation, run the malware scanner to get rid of most standard infections.

Download the security program using an alternate web browser

Some malware mainly targets particular browsers. If this sounds like your case, use another web browser as it could circumvent the virus. If you appear to have a virus attached to Internet Explorer, then switch over to an alternate browser with built-in security features, such as Firefox or Chrome, to download your preferred anti-malware program – Safebytes.

Install and run anti-virus from the Thumb drive

Another solution is to store and operate an anti-malware program entirely from a Pen drive. Do these simple steps to clear up your affected PC using a portable antivirus. 1) Download the anti-malware on a virus-free PC. 2) Insert the USB drive onto the same system. 3) Run the setup program by double-clicking the executable file of the downloaded software, with a .exe file format. 4) Choose the drive letter of the pen drive as the place when the wizard asks you where you would like to install the antivirus. Follow the instructions on the computer screen to complete the installation process. 5) Unplug the pen drive. You may now utilize this portable anti-virus on the affected computer. 6) Double-click the EXE file to open the Safebytes software right from the pen drive. 7) Click the “Scan” button to run a full system scan and remove viruses automatically.

Protect Your PC and Privacy With SafeBytes Anti-Malware

To help protect your laptop or computer from many different internet-based threats, it’s important to install an anti-malware program on your laptop. However, with so many antimalware companies in the marketplace, nowadays it is hard to decide which one you should buy for your laptop. Some of them are great and some are scamware applications that pretend as genuine anti-malware software waiting to wreak havoc on your computer. While looking for an anti-malware tool, choose one that offers dependable, efficient, and complete protection against all known computer viruses and malware. On the list of recommended software by industry analysts is SafeBytes Anti-Malware, a popular security application for Windows computers. SafeBytes anti-malware is really a powerful, highly effective protection software made to assist users of all levels of computer literacy in finding and removing harmful threats from their computer. Through its cutting-edge technology, this software protects your computer against infections caused by different kinds of malware and similar threats, including spyware, adware, viruses, worms, trojans, keyloggers, ransomware, and potentially unwanted program (PUPs). SafeBytes anti-malware provides a myriad of advanced features that sets it apart from all others. Below are some of the great features included in the tool. Robust Anti-malware Protection: Built on a highly acclaimed anti-virus engine, this malware removal application can find and get rid of many obstinate malware threats like browser hijackers, PUPs, and ransomware that other common antivirus applications will miss. Live Protection: SafeBytes provides complete and real-time security for your computer. This software will continuously keep track of your computer for suspicious activity and updates itself continuously to keep current with the latest threats. Web Filtering: Through its unique safety rating, SafeBytes informs you whether a site is safe or not to visit it. This will make sure that you’re always certain of your safety when browsing the web. Faster Scanning: SafeBytes Anti-Malware possesses a multi-thread scan algorithm that works up to five times faster than any other antivirus software. Lightweight Application: SafeBytes gives you complete protection from online threats at a fraction of the CPU load due to its enhanced detection engine and algorithms. 24/7 Live Expert Support: You will get 24/7 technical support to promptly resolve any issue with your security application. SafeBytes can keep your PC safe from most advanced malware threats automatically, thus keeping your online experience secure and safe. Malware issues can become a thing of the past when you put this application to use. If you want sophisticated forms of protection features & threat detections, buying SafeBytes Anti-Malware will be worth the dollars!

Technical Details and Manual Removal (Advanced Users)

If you do not wish to use malware removal software and like to get rid of ListenToTheRadioNow manually, you might accomplish this by going to the Windows Add/Remove Programs menu in the control panel and deleting the offending software; in cases of web browser plug-ins, you could remove it by visiting the browser’s Add-on/Extension manager. You will likely also want to reset your web browser. Finally, check your hard drive for all of the following and clean your Windows registry manually to get rid of leftover application entries after uninstalls. Please keep in mind that only experienced users should attempt to manually edit the system files because removing any single critical registry entry results in a serious problem or even a system crash. In addition, certain malware is capable of replicating or preventing removal. It is highly recommended that you carry out the removal process in Safe Mode.

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.

Recently, a number of users reported an error in Google Chrome that says, “ERR_SOCKET_NOT_CONNECTED”. If you are one of these users, read on as this post will guide you in resolving this error. This kind of error in Chrome is kind of vague so it could be caused by a couple of factors like DNS server issues, Socket Pools, third-party plugins or extensions, and many more. Whatever the cause may be, there are several options you can check out to resolve the problem. You can try to flush the Socket Pool or change the DNS address or remove unwanted extensions or reset your Google Chrome browser.

Option 1 – Try to flush the Socket Pool

• Open Google Chrome and in the address bar, type “chrome://net-internals/”.
• After that, select Sockets on the left side panel.
• Next, select Flush socket pools from the right-side panel.
• And once it’s done, restart your Chrome browser and check if the “ERR_SOCKET_NOT_CONNECTED” is fixed or not.

Option 2 – Try to change the DNS Server

In this option, you can try changing your current DNS settings to the Google Public DNS as it could also help in fixing the “ERR_SOCKET_NOT_CONNECTED” error. To do so, follow the steps below.

• The first thing you have to do is right-click on the network icon in the Taskbar and select Network and Sharing Center.
• Next, click on the “Change Adapter Settings” option.
• After that, search for the network connection that you are using to connect to the internet. Note that the option might be “Wireless Connection” or “Local Area Connection”.
• Right-click on your network connection and click on Properties.
• Then select the new window to choose the “Internet Protocol 4 (TCP/IPv4)” option.
• After that, click on the Properties button and click the checkbox in the new window for the option “Use the following DNS server addresses”.
• Type in “8.8.8.8” and “8.8.4.4” and click OK and exit.

Option 3 – Get rid of any conflicting browser extensions

• 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 4 – Try to reset Google Chrome

Before you proceed, make sure that the Chrome browser is not running anywhere in the background via Task Manager. Once you’ve made sure that it’s no longer running, refer to these steps:

• Tap the Win + R keys to open the Run dialog box.
• Then type “%USERPROFILE%AppDataLocalGoogleChromeUser Data” in the field and tap Enter to open this location.
• From there, look for the Default folder and then tap the Shift + Delete button and if a confirmation prompt appears, click on Yes.
• After deleting the Default folder, open Google Chrome and click on the three vertical dots icon located in the top-right corner to open the menu.
• Next, click on Settings and scroll down and then click on Advanced to open the Advanced Settings.
• Then scroll down until you see the “Reset and clean up” section and click the “Restore Settings to their original defaults” option.
• After that, you will see a confirmation box and from there, click on the Reset settings button to reset your Google Chrome browser.

If you are getting this error even if STEAM.EXE is present on your system then follow the easy guide to solve the issue.

1. Scan your system for malware

   Scan your complete system for viruses and other malware. If all the scans come negative then move to the next step.

2. Disable your anti-virus software

   Some anti-virus and anti-malware software can detect steam as a potential threat and block it. Turn off your protection software and try to run Steam once all your protection is disabled. If this works you will need to either place Steam in the applications exception list or to move to another protection software.

3. Remove administrator privileges from steam client

   Right-click on steam.exe and choose properties, go to the compatibility tab, and uncheck run this program as administrator. Try to run Steam again.

4. Delete Steam registry value

   If everything else failed try deleting the registry value for steam. Open registry editor and locate key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options Double click on Image File Execution, find steam on left, right-click on it, and choose delete. Save and exit the registry editor.