What happens if I delete all DLL files?

A DLL (Dynamic Link Library) file is an executable file that allows programs to perform predefined functions so that they may operate in the fashion that they were designed to do. DLL files are not loaded into your system’s memory which saves RAM space. Multiple programs are able to utilize one DLL file. Malicious applications such as browser plugins or browser hijackers are sometimes made up of DLL files that change settings allowing outside attackers access to your system.

Removal of unwanted DLL files is an essential step to remove an infection or spyware parasite. Manual removal of an unwanted DLL file can be performed if the DLL file is unregistered first.

Unregister and Remove Unwanted DLL files manually.

1. Locate the unwanted DLL file by opening the command prompt window. Click "Start" menu > select "Run" > type in "cmd" > click "OK".
   

2. Locate the exact unwanted DLL file path [as shown in Figure 1]. Type in "cd" to change the directory and then press the "space" button. Enter the exact path (folder location) to the unwanted DLL file and press "enter".
   
   
   Figure 1.

3. While in the directory for the unwanted DLL file, type in "regsvr32 /u [name_of_DLL]" and press "enter" [as shown in Figure 2].
   
   
   Figure 2.

A message should appear after successfully unregistering the unwanted DLL file.

If you experience issues after attempting manual removal of an unwanted DLL file, then you may download SpyHunter's spyware scanner to automatically detect the infected file.

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Check How To Delete dll files

To remove unwanted or corrupted .dll files, you must first make the hidden files visible, then unregister them using Command Prompt, and finally remove them manually from their source folder. It is essential to understand that the file is not a Windows system necessity. Deleting DLLs that your computer relies on can make your machine unbootable, so don’t delete a file unless you’re sure what it is and why you don’t want it on your computer.

Steps

Start your Windows PC in safe mode. This ensures that if you have an unwanted application, such as spyware, that depends on the DLL to function, it won’t prevent you from deleting the file. To start your computer in safe mode:

• Click on the Windows menu and select Settings.
• Click Update & Security.
• Click Recovery.
• Click Restart Now under “Advanced Startup”.
• When your PC restarts, click Troubleshoot.
• Click Advanced Options.
• Click Startup Settings and select Restart.
• When you see the list of boot options, press 4 or F4 as instructed to boot into safe mode.

Open Windows File Explorer. You can do this by pressing Windows Key + E simultaneously, or by clicking File Explorer on the Start menu.

Click the View tab. It’s at the top of File Explorer.

Click the Options icon. It’s near the top-right corner of the window.

Click the View tab. It’s at the top of the Folder Options window.

Select “Show hidden files, folders, and drives.” It’s the second option under the “Hidden files and folders” heading.

Remove the check marks from “Hide extensions for known file types” and “Hide protected operating system files”. Both options are a bit below the selection you made in the previous step.

Click OK. Now you can work with hidden DLL files on your PC.

Navigate to the DLL you want to remove. You can use Windows Explorer to do this. For example, if you want to remove a DLL that a virus left on your flash drive, select your flash drive in the left pane.

• If you’re not sure where the file is located, click This PC in the left pane, and then type the file name (or part of the file name) in the “Find this PC” field in the upper right corner of the screen. window. Click the purple arrow to display the search results: when you find the file, right-click its name and then select Open File Location from the menu.

Right click on the address bar and click Copy Address as Text. This is the bar at the top of the window that contains the full path to the currently open folder. This will save the path to your clipboard.

Open Command Prompt as administrator. That’s how:

• Type cmd in the search bar next to the Windows start button (you may have to click a magnifying glass first to see it).
• In the search results, right-click Command Prompt and select Run as administrator.
• Click Yes.

  Go to the directory that contains your DLL file. That’s how:

  • Type cd and then press the space bar. Don’t press Enter yet.
  • After the space, right-click the command prompt and select Paste. Depending on your settings, simply right-clicking may automatically paste the copied path, but some may still need to click Paste to see it.
  • Press Enter to run the command.
  • You can use the dir command at the prompt to see a list of all the files in the folder. To see only the DLL files, use dir *.dll instead.

  Unregister the DLL file. When prompted, type regsvr32 /u filename.dll. Replace filename.dll with the name of the file you want to delete, and then press the Enter key to run the command. This makes it possible to remove the DLL

  Delete the file. You will use the command prompt to do so:

  • Type del /f filename.dll, replacing “filename.dll” with the name of the file. The /f flag tells Windows to delete the file even if it is read-only.
  • Press Y to confirm if prompted.
  • Once the file is removed, undo the changes you made to the File Explorer options and restart your computer normally.

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