Restoring accidentally deleted system files

Error 0x8004210A - What is it?

0x8004210A is a typical POP3 email error message. This error may sometimes occur when you try to check your Post Office Protocol 3 (POP3) email account. 0x8004210A error code hampers your ability to both send and receive e-mails on your Outlook account. Error 0x8004210A is displayed in any one of the following formats on your PC:

The operation timed out waiting for a response from the receiving (POP) server 0x8004210a Task 'SMTP server name - Sending and Receiving reported error' (0x8004210A): 'The operation timed out waiting for a response from the receiving (POP) server. If you continue to receive this message, contact your server administrator or Internet service provider (ISP).'

Error Causes

Error 0x8004210A occurs due to several reasons. However, some of the most common reasons include:

• Wrong port number for the POP incoming server
• Your connection to the mail server is too slow
• Incoming and outgoing emails are being scanned and stopped by an antivirus installed on your system
• The Outlook send and receive job is being blocked by Firewall
• You are sending and receiving large series of emails or large email attachments
• Registry issues

No matter what the cause of this error is, to resume email communication via Outlook and to ensure your work productivity is not affected, it is recommended that you resolve this 0x8004210A error code on your PC immediately.

Further Information and Manual Repair

To fix error 0x8004210A, here are some of the most efficient and easy manual methods that you can try:

Method 1

If the cause of the error is related to the internet connection then here’s what you need to do. Try freeing up your internet connection by closing any other online activities in progress or downloads being carried on your system.

Method 2

Try to increase your server time-out periods. To do this, go to the Outlook File menu and choose account settings. Now double click on your email account and more settings. Now click advanced and increase your server timeout period to resolve.

Method 3

If you are trying to send or receive large and heavy emails on your Outlook account, the error 0x8004210A may pop up. This happens because when transferring heavy files the email account automatically locks until the task is complete, however, if it takes more time the next Send and Receive job starts while the first one is still not complete. In such an event, the email server then times out and shows you the error. Therefore to resolve, you will have to show patience. Simply wait for the large email to be sent or received before you start sending another email.

Method 4

If the antivirus installed on your system is the reason for the error pop up, then disable it for a while until the operation is complete. Then enable it once the task is performed successfully.

Method 5

Similarly, if the Firewall installed on your system is preventing Outlook from reaching your mail server, then simply disable the Firewall to resolve.

Task View feature inside Windows 11 is actually a great feature, letting you quickly view open windows and virtual desktops. How Task view itself could be reached with keyboard shortcut combination of ⊞ WINDOWS + TAB some users will prefer this way of using it and thus button on the taskbar is something you do not want or need. There is a very easy way to remove mentioned button and I will show you how to do it. Right-click the taskbar button itself and click on Hide From Taskbar. That’s it, you have done it. Now in order for you to bring it back if you change your mind, you will have to do some extra steps but it is nothing difficult. Right-click on the taskbar and click on Taskbar settings, you will be lead to Personalization > Taskbar. Inside locate Taskbar Items and switch Task View to ON, you will see the Task View button right away showing itself again.

This post will show you how to fix the Windows update error 0xca00a000 which you can encounter during the installation of Windows updates. Here’s the full error message of this Windows Update error:

“Updates failed There were problems installing some updates, but we’ll try again later. If you keep seeing this and want to search the web or contact support for information, this may help: 2018-07 Cumulative Update for Windows 10 Version 1803 for x64-based Systems (KB4345421) – Error 0xca00a000”

This kind of Windows Update error pops up when Windows has missed installing one of the cumulative updates needed or when there is some problem with the driver that won’t let the installation of the updates push through. There are also instances when the system files are modified with incorrect permission that may result in the Windows update error 0xca00a000. Thus, you need to fix the trusted installer permission as well as resolve the issue with the driver. To do these things, you need to follow the options laid out below.

Option 1 – Run the Windows Module Installer

The Windows Module Installer is a built-in service in the Windows operating system that could help you resolve the Windows update error 0xca00a000. You need to make sure that this service is Started and that its Startup type is set to Automatic – you can do this via Services Manager or by executing the command given below in an elevated Command Prompt.

• Tap the Win + R keys to open the Run dialog box.
• Then type “command prompt” in the field and hit Enter to open Command Prompt.
• And in the elevated Command Prompt type in the following command and hit Enter:

SC config trustedinstaller start=auto

• After executing the command successfully, you should see the “[SC] ChangeServiceConfig SUCCESS” message on the Command Prompt window.

Option 2 – Try manually installing the updates

As mentioned, the error might be because Windows missed installing a particular update which is why you are not able to proceed with the current update. So to resolve the issue, you need to install the update that wasn’t installed by downloading it from the Microsoft Update Catalog website. You also have to make sure that you didn’t turn off the Windows update or have it delayed.

Option 3 – Delete the files from the Software Distribution folder

The Software Distribution folder in the Windows operating system is a folder that can be found in the Windows directory and is used to store files temporarily which might be required to install the Windows Update on your PC. Thus, it is required by the Windows Update and maintained by WUAgent. A lot of users tried deleting the files in this folder to fix the problem and so far it has worked. Like them, you can try clearing the Windows Update cache by simply deleting the contents of the folder named “SoftwareDistribution” since Windows apparently can’t clear and re-download the update contents once they are corrupted. Thus, deleting the contents of this folder will make Windows download the contents again which will fix the problem. To do that, follow the steps below.

• Open the WinX Menu.
• From there, open Command Prompt as admin.
• Then type in the following command – don’t forget to hit Enter right after typing each one of them.

net stop wuauserv net stop bits

• After entering these commands, it will stop the Windows Update Service and the Background Intelligent Transfer Service.
• Next, go to the C:/Windows/SoftwareDistribution folder and get rid of all the folders and files thereby tapping the Ctrl + A keys to select them all and then click on Delete. Note that if the files are in use, you won’t be able to delete them.
• Once all the contents in the Software Distribution folder are deleted, restart your PC and then go back to Command Prompt and input the following commands again.

net start wuauserv net start bits

Since the folder has already been flushed, it will be populated afresh the instant your restart your computer and open Windows Update.

• Now Open Settings and check for Windows Updates. Windows 10 should begin the download right away.

Option 4 – Install the updates in a Clean Boot State

You might want to try putting your computer in a Clean Boot state and then install Windows Updates again without any trouble. During this state, you can start the system with a minimum number of drivers and startup programs that will surely help you in isolating the root cause of the issue.

• 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 that, try to install the Windows Updates or upgrade again.

Option 5 – Run the Windows Update Troubleshooter

Running the built-in Windows Update troubleshooter could also help you resolve the Windows update error 0xca00a000. To run it, go to Settings and then select Troubleshoot from the options. From there, click on Windows Update and then click the “Run the troubleshooter” button. After that, follow the next on-screen instructions and you should be good to go.

Option 6 – Run Microsoft’s online troubleshooter

Running Microsoft’s online troubleshooter might also help you fix the Windows update error 0xca00a000. This online troubleshooter is known to help in fixing Windows Update errors, it scans your computer for issues that might be causing the problem and then fixes them automatically.

If you receive an error message that says, “Entry point not found, The procedure entry point could not be located in the dynamic link library” on your Windows 10 PC, then you will find this post useful for this will provide you some potential fixes to fix the error. This kind of error can occur if a program fails to locate the DLL library that it needs in order to run. It can also occur if the library is not in the specified directory in the path or if the DLL file has gone missing or has become corrupted. To fix the “The procedure entry point could not be located in the dynamic link library” error, check out the following options given below.

Option 1 – Try to reinstall the program

The first thing you can do to resolve the error is to uninstall the program that throws the error and download its latest version from its official site and then install it again.

Option 2 – Run System File Checker scan

If reinstalling the program didn’t work, you can also try running the System File Checker or SFC scan to fix the error. System File Checker is a command utility built into your computer that helps restore corrupted files and missing files. Refer to the following steps to run it:

• Hit the Win + R keys to launch Run.
• Type in cmd in the field and tap Enter.
• After opening Command Prompt, type in sfc /scannow

The command will start a system scan which will take a few whiles before it finishes. Once it’s done, you could get the following results:

1. Windows Resource Protection did not find any integrity violations.
2. Windows Resource Protection found corrupt files and successfully repaired them.
3. Windows Resource Protection found corrupt files but was unable to fix some of them.

 Reboot your computer.

Option 3 – Try checking the details in the Event Viewer

The Event Viewer can also help you resolve the error as it contains detailed information about the error that could help you pinpoint its root cause and resolve it.

Option 4 – Try to re-register the problematic DLL file

You may have to re-register the ntdll.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 unregister OLE controls like DLL and ActiveX (OCX) controls in the Windows operating system. Follow the steps below to use it.

• Open Command Prompt as admin from the WinX menu.
• Next, type the following commands 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.
  • exe /[DLL file]
  • exe [DLL file]

Note: Replace “[DLL file]” with the name of the DLL file that was pointed out in the error.

• After you execute the given commands, 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.

Option 5 – Try to replace the DLL file with a trusted source

• First, you need to get the new DLL file from another computer with preferably the same file version number.
• After that, you need to boot your PC into Safe Mode and navigate to the paths listed below and then replace the file using a USB drive or other external storage devices.
  • x86: This PC > C:/Windows/System32
  • x64: This PC > C:/Windows/SysWOW64
• Next, type “cmd” in the Cortana search box and right click on Command Prompt, and select “Run as administrator” to open it with administrator privileges.
• Now type the “regsvr32 ntdll.dll” command and hit Enter.
• Restart your PC and check if the error is now fixed.

Option 6– Try to scan your computer using Windows Defender

It is also possible that the DLL file might be infected with malware or virus which could explain why you’re getting the error. Thus, you have to scan your computer using security programs like Windows Defender.

• Tap the Win + I keys to open Update & Security.
• Then click on the Windows Security option and open Windows Defender Security Center.
• Next, click on Virus & threat protection > Run a new advanced scan.
• Now make sure that Full Scan is selected from the menu and then click the Scan Now button to get started.

Windows users need to be on high alert. Microsoft has confirmed a critical vulnerability has been found in all versions of Windows which presents an immediate threat, and you need to act now. A critical new zero-day hack has been found which affects all Windows versions. Tracked as CVE-2021-34484, the “zero-day” flaw enables hackers to breach all versions of Windows (including Windows 10, Windows 11, and Windows Server 2022) and take control of your computer. Microsoft mistakenly thought it had patched the vulnerability (which was first found in August) when it was publicly disclosed in October. But the fix itself was found to be flawed, something the company admitted, and this drew even more attention to the vulnerability. Microsoft subsequently promised to “take appropriate action to keep customers protected” but two weeks later, a new fix has still not arrived. Luckily the third-party security specialist 0patch has beaten Microsoft to the punch with a ‘micropatch that it has now made available for all Windows users “Micropatches for this vulnerability will be free until Microsoft has issued an official fix," 0patch confirmed. You will need to register for a 0patch account and install its download agent before the fix can be applied, but with 0patch fast becoming a go-to destination for hot fixes which beat software companies to the punch this is a no brainer. Hopes will be high that Microsoft can release an effective patch sooner rather than later but, until then, all Windows users must act now if they want to be safe. Download 0patch here: https://blog.0patch.com/2021/11/micropatching-incompletely-patched.html

Error Code 0x80070652 – What is it?

Error code 0x80070652 occurs when Windows users attempt to upgrade their operating system while another program is in the process of being downloaded. It may also occur due to problems related to previously failed update attempts within Window Update. When this Windows 10 upgrade occurs, Windows users fail to access the version of Windows they are attempting to download. Instead, a message box occurs stating that error code 0x80070652 has occurred on the device. If this error message is not rectified, it could give birth to other Windows 10 errors such as error code 0x80072EE2.

Solution

Error Causes

Error code 0x80070652 may result from Windows 10 users attempting to download another program while upgrading their operating system. It may also be caused by an issue related to previous installations of updates. For instance, in some cases, your previous installation of the Windows process may have been interrupted or it was simply not completed properly. This causes any other upgrade process that follows to result in error code 0x80070652.

Further Information and Manual Repair

But what can be done in such a situation to resolve the error code? Windows users have several options available. For instance, they can wait on any additional program that may be in the process of downloading to complete the process before attempting to upgrade Windows. They may also troubleshoot problems related to any failed updates or select a system restore point in which the error code was not present.

The manual repair methods Windows 10 users choose may involve any of the solutions mentioned previously. The choice is largely dependent on the user and his determination to fix the error code. However, note that automated tools or Windows repair technicians may also provide solutions to PC issues like error code 0x80070652.

Method One: Verify and Troubleshoot Failed Upgrades

Since previously failed updates within Windows Update can lead to the occurrence of error code 0x80070652, Windows 10 users will need to verify which of these failed updates occurred by checking the history section of the Windows Update tool. Once you’ve been able to verify that failed updates have occurred in the recent past, you’ll need to troubleshoot these problems to rectify the error code. Follow the instructions below to check for updates that have failed to install properly via Windows Update.

• Step one: Type Windows Update in the Search box near Start Menu
• Step two: Select Windows Update settings
• Step three: Select Update history
• Step four: Review updates from the most recent to least recent to see which updates have failed
• Step five: Click failed updates for more details and troubleshoot accordingly.

Once you’ve completed the troubleshooting of any updates which failed, proceed by rebooting your device. You may then reattempt to upgrade to the latest version of Windows 10 once no other program is in the process of being downloaded.

If the problem causing error code 0x80070652 was related to failed updates of the past, these issues will likely be resolved once you successfully troubleshoot them. However, if the error code reoccurs, apply the next manual repair solution mentioned in this article.

Method Two: Download Updates Manually via Microsoft Download Center

Another option available to users is simply downloading updates manually by visiting the official Microsoft website, specifically the Windows section which provides downloads. To successfully complete this process, ensure you look for stand-alone packages of these downloads available on the website. You will need to know the Microsoft Knowledge Base (KB) article number related to the specific update(s) which failed.

Once a Windows user has verified the KB article number of the specific update, download it from the Microsoft website, then select Run to install the update. Reboot your PC, then check Windows Update to see if you are able to successfully complete the Windows 10 upgrade.

If the upgrade fails, you may need to implement the next manual repair method as is mentioned below.

Method Three: Use Windows System Restore

One of the best options for Windows 10 users facing certain PC problems is to apply System Restore. This allows them to reset their machine for a period of time in which the problem was not present. This is known as the restore point. To apply this manual repair method, follow the steps below.

• Step one: In the search box beside the Start Menu, type System Restore
• Step two: Select Create a restore point
• Step three: Select the System Protection tab then Configure or Create
• Step four: Provide details regarding a system restore point of your choice
• Step five: Select Create, then OK.

Method Four: Download an Automated Tool

If you wish to always have at your disposal a utility tool to fix these Windows 10 and other related issues when they do arise, download and install a powerful automated tool.

Every now and then, the Windows Installer can also encounter some problems or glitches. One of these problems is where the Windows Update Standalone Installer, Windows Defender as well as Windows Firewall throws an error message that says, “The specified service does not exist as an installed service, 0x80070424”. This type of error can actually affect various applications on your computer so you have to fix it as soon as you can. Although there is no clear reason for what really causes this error, there are various suggestions you can try to fix it.

Option 1 – Try to run the Windows Update troubleshooter

Windows 10 have various troubleshooters that can help you resolve many system issues. So if you’re dealing with errors “The specified service does not exist as an installed service, 0x80070424”, you can run the Windows Update troubleshooter to resolve it. To run it, go to Settings and then select Troubleshoot from the options. From there, click on Windows Update and then click the “Run the troubleshooter” button. After that, follow the next on-screen instructions and you should be good to go.

Option 2 – Try to reconfigure the Windows Time Service

• In the Start Search, type “command prompt” and right-click on Command Prompt from the search results.
• Then click on the “Run as administrator” option to open Command Prompt with admin privileges.
• Now execute each one of the given commands sequentially and hit Enter right after you type each one of them.
  • net stop W32time
  • exe /unregister
  • exe /register
  • net start W32time
• After executing the given commands above, wait until it says, “W32Time successfully registered”.

Option 3 – Try to restart related Windows services

• First, type “command prompt” in the Start Search and right-click on Command Prompt from the search results.
• Then click on the “Run as administrator” option to open Command Prompt with admin privileges.
• Now execute each one of the given commands sequentially and hit Enter right after you type each one of them.
  • SC config wuauserv start= auto
  • SC config bits start= auto
  • SC config cryptsvc start= auto
  • SC config trustedinstaller start= auto

Note: The commands you’ve just executed will make sure that the required Windows services are available.

Option 4 – Try to download and install the Windows Update Agent

You might also want to download and install the latest Windows Update Agent as it could also help you resolve the “The specified service does not exist as an installed service, 0x80070424” error.

Option 5 – Try to reset the Windows Update components

If by any chance that the second option didn’t work, resetting the Windows Update components could also help you resolve the problem. How? Refer to the following steps:

• Open Command Prompt with admin privileges.
• After that, type each one of the following commands and hit Enter after you key in one after the other.
  • net stop wuauserv
  • net stop cryptsvc
  • net stop bits
  • net stop msiserver

Note: The commands you entered will stop the Windows Update components such as Windows Update service, Cryptographic services, BITS, and MSI Installer.

• After disabling WU components, you need to rename both the SoftwareDistribution and Catroot2 folders. To do that, type each one of the following commands below, and don’t forget to hit Enter after you type one command after the other.
  • ren C:WindowsSoftwareDistribution SoftwareDistribution.old
  • ren C:WindowsSystem32catroot2 Catroot2.old
• Next, restart the services you’ve stopped by entering another series of commands. Don’t forget to hit Enter after you key in one command after the other.
  • net start wuauserv
  • net start cryptsvc
  • net start bits
  • net start msiserver
• Close Command Prompt and reboot your PC and then check for updates on your computer and see if the error is resolved.

Option 6 – Try running the Windows Firewall troubleshooter

You could also try to run the Windows Firewall troubleshooter as it might also help you fix the problem. This could help in repairing and fixing Windows Firewall issues automatically. Check if it’s available for your Windows.

One of the useful features that came with Windows 10 is the Mobile Hotspot although there’s a downside to it – it drains your battery faster especially if your Windows 10 device is running on battery. Another one of its flaws in the implementation of this feature is that it stays activated even when the connection is idle. In other words, it is still activated even if no devices are connected to it. As a result, it consumes battery life and affects it. There are also instances when it affects the performance of the network connection. At the time of writing, Microsoft hasn’t done anything about this dilemma yet so in the meantime, you can continue reading this post to resolve this issue on your Windows 10 device. You can remedy this Mobile Hotspot issue by running a command in Windows PowerShell. To get started, follow the given instructions below.

Turn off Mobile Hotspot Automatically:

Step 1: The first thing you have to do is to copy the following command:

powershell -windowstyle hidden -command "Start-Process cmd -ArgumentList '/s,/c,net stop "icssvc" & REG ADD "HKLMSYSTEMCurrentControlSetServicesicssvcSettings" /V PeerlessTimeoutEnabled /T REG_DWORD /D 1 /F & net start "icssvc"' -Verb runAs"

Step 2: After copying the command given above, open the Notepad app and paste the command you copied there and save it. And when saving it, select the “Save as” option and its File type as “All files”. Step 3: After that, put “TurnOnTimer.bat” as the file’s name and save it on your Desktop. Step 4: Once done, run the file you just created, and when a User Account Control or UAC prompt appears, just click on Yes. Step 5: After you run the file, it will run a series of scripts in a command line which will turn off the Mobile Hotspot automatically when idle. And that’s how you automatically turn off the Mobile Hotspot when your Windows 10 device is idle. On the other hand, if you want to undo the changes made, you can always do so using the steps provided below.

Turn on Mobile Hotspot:

Step 1: Copy and paste the following command in the Notepad app:

powershell -windowstyle hidden -command "Start-Process cmd -ArgumentList '/s,/c,net stop "icssvc" & REG ADD "HKLMSYSTEMCurrentControlSetServicesicssvcSettings" /V PeerlessTimeoutEnabled /T REG_DWORD /D 0 /F & net start "icssvc"' -Verb runAs"

Step 2: After copying and pasting the command, save it as “TurnOffTimer.bat” on the Desktop. Step 3: Once done, run the file like what you did earlier and select Yes when a UAC prompt pops up. This will run a series of scripts on a command line which will revert the changes back to their default state.

Windows uses 2 types of keys for its activation, KMS or MAK. These keys should work without any issues since they are elevated with higher permissions but in some cases, they are by accident run without their proper permission, and then we have access denied error or error 0x80070005 To resolve this issue please first check if not by any chance your antivirus or firewall is preventing slmgr.bs file to access the right permissions, that being said if the previous solution is not working note that you have to be an administrator of the system or have administrator privileges. As an administrator, you will have to use Software Licencing Management Tool or short SLMGR.VBS, a VBS file in Windows used for its activation purposes. As an administrator, open Command prompt with admin permissions and then run slmgr.vbs This will make sure that activation goes through, make sure to use proper options like:

/ipk <ProductKey> or /ato [<Activation ID>]

The SearchUI.exe file is the one that manages the search feature of Cortana. However, a number of users have recently reported that this feature stops responding within minutes of booting their Windows 10 computer. This kind of problem could be caused by missing system files or some issues with the Cortana program itself. And so if the SearchUI.exe file is not responding, then you wouldn’t be able to use the search feature of Cortana. But worry not for this post will walk you through fixing this problem. Before you troubleshoot the problem, you can try to restart your computer and see if it helps, if it doesn’t, then proceed to the given options below.

Option 1 – Try to run the Search and Indexing troubleshooter

You might also want to run the Search and Indexing troubleshooter in Windows 10 as it checks whether the settings for Cortana are in place and automatically corrects any issues if the update or software installation has changed the settings. To run it just click on the Start button and select Settings > Updates and Security > Troubleshoot. From there, select the Search and Indexing Troubleshooter.

Option 2 – Restart Cortana’s process in the Task Manager

Restarting Cortana’s process in the Task Manager could also help you resolve the problem. Refer to the steps given below to do so.

• Tap the Ctrl + Alt + Del keys to open the Security options window.
• From there, look for the Task Manager in the given list and open it.
• Next, look for the process of Cortana and right-click on it, and then select the End Task option to end its process.
• After that, the Cortana process will restart by itself and re-initialize.

Option 3 – Try resetting Cortana

• Open Cortana and go to the Settings section where you’ll see the “Turning off Cortana clears what Cortana knows on this device, but won’t delete anything from the Notebook. After Cortana is off, you can decide what you’d like to do with anything still stored in the cloud” option. Turn this option off.
• Restart your PC.
• After your computer boots, launch Cortana again and check.

Option 4 – Try running the DISM tool

You can try running the Deployment Imaging and Servicing Management or DISM tool to fix the Windows Upgrade problem. Using this built-in tool, you have various options such as the “/ScanHealth”, “/CheckHealth”, and “/RestoreHealth”.

• Open the Command Prompt with admin privileges.
• Then type in the following commands and make sure to hit Enter right after you type each one of them:
  • Dism /Online /Cleanup-Image /CheckHealth
  • Dism /Online /Cleanup-Image /ScanHealth
  • exe /Online /Cleanup-image /Restorehealth
• Do not close the window if the process takes a while as it will probably take a few minutes to finish.

Option 5 – Try to reinstall Cortana

If none of the options given above works, you must consider reinstalling Cortana.

• First, right-click on the Start button and click on the Windows Powershell (Admin) option from the list.
• Next, type the following command and hit Enter to execute it:

Get-AppXPackage -Name Microsoft.Windows.Cortana | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)AppXManifest.xml"}

• Restart your computer and check if Cortana is now able to connect.

Option 6 – Try troubleshooting the problem in a Clean Boot State

There are instances that some conflicting programs installed in your computer might be the one that’s causing some issues with Cortana or causing the SearchUI.exe process to stop. To identify which program is causing the problem, you need to put your computer in a Clean Boot State. To do so, follow the steps below.

• 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” check box 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” check box.
• 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.)
• From there, start to isolate the problem by checking which one of the programs you installed recently is the root cause of the problem.