Troubleshoot System.Runtime.CompilerServices.Unsafe.dll Issues (Free Download)

Last Updated: 05/13/2020
[Time to Read: ~3-5 minutes]

System.Runtime.CompilerServices.Unsafe.dll, also known as a System.Runtime.CompilerServices.Unsafe file, was created by dotPDN LLC for the development of Microsoft® .NET Framework. DLL files fall under under the Win32 DLL (Dynamic link library) file type category.

System.Runtime.CompilerServices.Unsafe.dll was first developed on 11/16/2018 for the Windows 10 Operating System in Hotspot Shield Elite 7.15.1. The latest file update released for Paint.NET 4.2.5 was on 10/01/2019 [file version 4.6.26919.02].

Please see below for more detailed information, DLL file troubleshooting instructions, and free downloads of different versions of System.Runtime.CompilerServices.Unsafe.dll.

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Recommended Download: Fix System.Runtime.CompilerServices.Unsafe.dll / Paint.NET-related registry issues with WinThruster.

Compatible with Windows 10, 8, 7, Vista, XP and 2000

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File Overview

General Information
File Name: System.Runtime.CompilerServices.Unsafe.dll
File Extension: DLL file extension
Description: System.Runtime.CompilerServices.Unsafe
Object File Type: Dynamic link library
File Operating System: Win32
MIME Type: application/octet-stream
User Popularity Rating:
Developer and Software Information
Software Developer: Microsoft Corporation
Software Program: Microsoft® .NET Framework
Legal Copyright: © Microsoft Corporation. All rights reserved.
File Details
Character Set: Unicode
Language Code: Neutral
File Flags: (none)
File Flags Mask: 0x003f
Entry Point: 0x31fe
Code Size: 5120
Assembly Version:

What are System.Runtime.CompilerServices.Unsafe.dll Error Messages?

Dynamic Link Library System.Runtime.CompilerServices.Unsafe.dll Errors

System.Runtime.CompilerServices.Unsafe.dll is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like System.Runtime.CompilerServices.Unsafe.dll, are essentially a "guide book" that stores information and instructions for executable (EXE) files - like mrt.exe - to follow. These files were created so that multiple programs (eg. Paint.NET) could share the same System.Runtime.CompilerServices.Unsafe.dll file, saving valuable memory allocation, therefore making your computer run more efficiently.

Unfortunately, what makes DLL files so convenient and efficient, also makes them extremely vulnerable to problems. If something happens to a shared DLL file, either it goes missing or gets corrupted in some way, it can generate a "runtime" error message. Runtime is pretty self-explanatory; it means that these errors are triggered when System.Runtime.CompilerServices.Unsafe.dll is attempted to be loaded either when Paint.NET is starting up, or in some cases already running. Some of the most common System.Runtime.CompilerServices.Unsafe.dll errors include:

Your System.Runtime.CompilerServices.Unsafe.dll file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Paint.NET), or deleted by a malware infection. Furthermore, System.Runtime.CompilerServices.Unsafe.dll file corruption could be caused from a power outage when loading Paint.NET, system crash while loading System.Runtime.CompilerServices.Unsafe.dll, bad sectors on your storage media (usually your primary hard drive), or quite commonly, a malware infection. Thus, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly.

How to Fix System.Runtime.CompilerServices.Unsafe.dll Errors in 3 Steps (Time to complete: ~5-15 minutes)

If you're encountering one of the error messages above, follow these troubleshooting steps to resolve your System.Runtime.CompilerServices.Unsafe.dll issue. These troubleshooting steps are listed in the recommended order of execution.

Step 1: Restore your PC back to the latest restore point, "snapshot", or backup image before error occurred.

To begin System Restore (Windows XP, Vista, 7, 8, and 10):

  1. Hit the Windows Start button
  2. When you see the search box, type "System Restore" and press "ENTER".
  3. In the search results, find and click System Restore.
  4. Please enter the administrator password (if applicable / prompted).
  5. Follow the steps in the System Restore Wizard to choose a relevant restore point.
  6. Restore your computer to that backup image.

If the Step 1 fails to resolve the System.Runtime.CompilerServices.Unsafe.dll error, please proceed to the Step 2 below.

Step 2: If recently installed Paint.NET (or related software), uninstall then try reinstalling Paint.NET software.

You can uninstall Paint.NET software by following these instructions (Windows XP, Vista, 7, 8, and 10):

  1. Hit the Windows Start button
  2. In the search box, type "Uninstall" and press "ENTER".
  3. In the search results, find and click "Add or Remove Programs"
  4. Find the entry for Paint.NET 4.2.5 and click "Uninstall"
  5. Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall Paint.NET software.

If this Step 2 fails as well, please proceed to the Step 3 below.

Paint.NET 4.2.5


Step 3: Perform a Windows Update.

When the first two steps haven't solved your issue, it might be a good idea to run Windows Update. Many System.Runtime.CompilerServices.Unsafe.dll error messages that are encountered can be contributed to an outdated Windows Operating System. To run Windows Update, please follow these easy steps:

  1. Hit the Windows Start button
  2. In the search box, type "Update" and press "ENTER".
  3. In the Windows Update dialog box, click "Check for Updates" (or similar button depending on your Windows version)
  4. If updates are available for download, click "Install Updates".
  5. After the update is completed, restart your PC.

If Windows Update failed to resolve the System.Runtime.CompilerServices.Unsafe.dll error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.

If Those Steps Fail: Download and Replace Your System.Runtime.CompilerServices.Unsafe.dll File (Caution: Advanced)

If none of the previous three troubleshooting steps have resolved your issue, you can try a more aggressive approach (Note: Not recommended for amateur PC users) by downloading and replacing your appropriate System.Runtime.CompilerServices.Unsafe.dll file version. We maintain a comprehensive database of 100% malware-free System.Runtime.CompilerServices.Unsafe.dll files for every applicable version of Paint.NET. Please follow the steps below to download and properly replace you file:

  1. Locate your Windows operating system version in the list of below "Download System.Runtime.CompilerServices.Unsafe.dll Files".
  2. Click the appropriate "Download Now" button and download your Windows file version.
  3. Copy this file to the appropriate Paint.NET folder location:
    Windows 10: C:\Program Files\Copernic\DesktopSearch\
    Windows 10: C:\Program Files (x86)\Hotspot Shield\bin\
    Windows 10: C:\Program Files (x86)\Betternet\5.1.0\
    Windows 10: C:\Program Files\\
  4. Restart your computer.

If this final step has failed and you're still encountering the error, you're only remaining option is to do a clean installation of Windows 10.

GEEK TIP : We must emphasize that reinstalling Windows will be a very time-consuming and advanced task to resolve System.Runtime.CompilerServices.Unsafe.dll problems. To avoid data loss, you must be sure that you have backed-up all of your important documents, pictures, software installers, and other personal data before beginning the process. If you are not currently backing up your data, you need to do so immediately.

Download System.Runtime.CompilerServices.Unsafe.dll Files (Malware-Tested 100% Clean)

CAUTION : We strongly advise against downloading and copying System.Runtime.CompilerServices.Unsafe.dll to your appropriate Windows system directory. dotPDN LLC typically does not release Paint.NET DLL files for download because they are bundled together inside of a software installer. The installer's task is to ensure that all correct verifications have been made before installing and placing System.Runtime.CompilerServices.Unsafe.dll and all other DLL files for Paint.NET. An incorrectly installed DLL file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution.

Windows 10

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