Operating Systems are complex and it needs number of files and programs to run it properly. And among all the system files Unarc.dll is one of Dynamic Link Library files that are quite requisite to run certain programs.

But sometimes users face several errors if any of these files get missing or corrupted. The malfunctioning of these files prevents the users from running several programs like games. In such kinds of situation users also fails to install any program on their PC. So the bottom line is for the proper functioning of Windows it is very important that these are intact.

Well here in this blog we will guide you on one of the related errors named Unarc.dll returned an error code. Many users have claimed that this error while trying to install a new program, updating a existing program or extracting files from a compressed archive

And if we talk about the reasons for occurring the error is then the list contains so many factors such as malfunctioning of Microsoft Visual C ++ Redistributable Package, presence of malware, corrupted or incomplete software downloads, or issues with the Unarc.dll files itself. But don’t panic if you are too facing this issue, just keep scrolling the blog till the end.

Try these fixes for Unarc.dll returned an error code

Method 1: Run SFC Scan & DISM Scan

Here in this method we suggest you to run SC Scan to repair the corrupted system files. To proceed with this method follow the below mention guidelines:

Step 1: First of all type cmd in Windows Search> Right-Click on Command Prompt search result and select Run as an Administrator

Step 2: Once User Account Control shows up, select Yes > then type in the following command and press Enter

sfc /scannow

Step 3: After that run the following commands as well:

dism /online /cleanup-image /scanhealth

dism /online /cleanup-image /checkhealth

dism /online /cleanup-image /restorehealth

Step 4: Finally Restart your PC

Method 2: Check your disk space

You are likely to face this issue if you don’t have enough space on your disk, so in such case we suggest you to clear some space on your drive and t do the same follow the below mention guidelines:

Step 1: In Windows Search bar type Disk Cleanup ad press Enter key> If your Windows is installed on C drive, select it from the list (should be by default) and press OK

Step 2: Now Clean up your System files> Select your main disk again and click OK

Step 3: Select the largest portions of the date used-these typically include Temporary Internet Files, Windows Update, Temporary Files, Recycle Bin, Delivery Optimization Files and others.

Step 4: Now click OK and wait for the cleanup process to finish

Method 3: Reinstall Microsoft Visual C++ Redistributable package

As we have earlier mentioned issues with the Microsoft Visual C++ Redistributable package is also a major reason for above mention error. So it is suggested to uninstall and then reinstall Microsoft Visual C++ Redistributable package.

Here’s how:

Step 1: In Windows Search type in Control Panel and press Enter> Select Programs>Uninstall a Program

Step 2: Then select the most recent Redistributable installed, for example Microsoft Visual C++ 2015 Redistributable

Step 3: Navigate to the official Microsoft website >then download and install both vc_redist.x86.exe (32-bit) and vc_redist.x64.exe (64-bit) versions

Step 4: Finally Reboot your system

Method 4: Increase Virtual Memory Size

In this method we suggest you to increase the virtual memory size and to do the same follow the below mention guidelines:

Step 1: In Windows Search bar, type in Advanced System Settings and press Enter > Under the Performance tab section, click Settings

Step 2: Now go to the Advanced tab> Under the Virtual Memory, select Change

Step 3: Untick the Automatically manage paging size for all drives option, ensure that you main drive is selected C: is the default.

Step 4: Select Custom Size> At the bottom, check the Recommended memory size and type it into the Initial Size (MB) filed.

Step 5: Under the Maximum Size (MB) filed, enter twice a bigger number than that in the initial size section

Step 6: Now Set and OK

Method 5: Scan with Anti-Malware

Several users have claimed that removing malware from the PC resolved their issue, so you can also use this method. To proceed follow the below mention guidelines:

Step 1: First of all type Windows Security in the Windows search bar ad press Enter> Select Virus and threat Protection

Step 2: Choose Scan Options > select Microsoft Defender Offline Scan and click Scan Now

Step 3: Your PC will Restart and the scan will begin> Results will be displayed after you enter Windows again.

Method 6: Run the program in Compatibility Mode

If you are facing issues with an older game the try to run the installer via the compatibility mode.

Here’s how:

Step 1: Right-Click on Installer and select Properties> Navigate to the Compatibility tab

Step 2: Then tick the Run this program in compatibility mode for and choose an older Windows version> click Apply and OK

Additionally we also suggest you to run the exe file as an Administrator >right-click on the file and select Run as a Administrator

Lastly try to select the installation path on another drive (for example, pick drive E instead of C)

Method 7: Rollback Windows 10 with System Restore

If you are still struggling with Unarc.dll returned an error code then we suggest you to rollback Windows 10 with System Restore.

Here’s how:

Step 1: Press Windows + X keys to open Run box and clicking Run> then enter rstrui in the Open text box ad press OK button

Step 2: Now click Next on the System Restore window that opens> select the Show more Restore points settings to fully expand the list of system restore points.

Step 3: After that select restore points that might resolve Unarc.dll error

Note: Programs installed after a selected restore point will be removed. Press the Scan for affected programs button to see what software is deleted for a restore point.

Step 4: Click Next and Finish to roll Windows 10 back to the selected restore point.

Note: The System Restore utility is a potential resolution for unarc file errors that have come about as a consequence of recent system change.

Best Recommended Solution for Windows Problems

Though all the above mentioned methods are effective and have a potential to resolve the above mentioned error but sometimes these methods failed to fix the error just because of the system corruption. So in such case you need a PC Repair Tool to scan the repositories. This is an expert tool and will resolve all the minor and major malfunctioning of Windows in just few clicks.

⇑Get PC Repair Tool from Here⇓

You may also read: Cdp.dll error in Windows

Related Queries!!

How to resolve Unarc.dll returned an error code 11?

Unarc.dll returned an error code 11 basically occurs when users try to decompress or extract a compressed file or install a game application. This error may also occur if the necessary DLL files are missing. Well if you are also looking for guide to troubleshoot this error, follow the below mention methods.

Fixes for Unarc.dll returned an error code 11 (Error code 12 and 14 Solution Included)

Note: DLL files are one of the requisite files and it plays a vital role in running specific programs. If these files get missing or corrupted due to any reason then it may create so many errors with different error code such as Unarc.dll returned an error code 1, Unarc.dll returned an error code 12, Unarc.dll returned an error code 14. If you are facing any of the above mentioned error codes then you can follow below mention troubleshooting ways.

Method 1: Reregister Unarc.dll

In this method it is suggested to reregister Unarc.dll and to do the same follow the below mention steps:

Step 1: Go to “C:\Windows\SysWOW64“ >scroll down and locate Unarc.dll

Step 2: Navigate to another computer running the same version of Windows. Copy Unarc.dll and replace it with the existing file on your PC. You can use the pendrive normally or email to take the file. Furthermore you can download Unarc.dll from the web but before that ensure that the source is reliable.

Step 3: Click on Search> type in PowerShell

Step 4: Select Run as an Administrator and then type or copy/paste the cmdlet below and press Enter key

regsvr32 %systemroot%\SysWOW64\unarc.dll

regsvr32 %systemroot%\System32\unarc.dll

Step 5: Once done then Restart the PC

Method 2: Delete the Temp files

You can also delete the temp files to resolve the error. Here’s how:

Step 1: On your keyboard press Win + R keys> type in %temp%

Step 2: Press the Enter key and delete all the items from the folder.

Step 3: After that open Temp folder in the same way, and remove entries items from there

Method 3: Lessen RAM Usage

You are likely to face the above mention error if you are using RAM excessively. So you need to boot in Safe Mode to minimize memory usage if your PC consumes too much RAM while installing ay program in particular.

Here’ how:

Step 1: On your keyboard press Windows + keys to launch Run dialog box> type Msconfig

Step 2: Click OK and select Boot tab from the System Configuration window >select Safe Boot followed by minimal

Step 3: Click Apply and OK then restart your PC

If you are still struggling with the above mention error then we suggest you to Increase Virtual Memory Size, Run the program in Compatibility Mode (as discussed above). And if none of the above mentioned methods works then go for our suggested PC Repair Tool.

That’s all about Unarc.dll returned an error code, we really hope that this blog was helpful for you in resolving any of the above mentioned Unarc.dll errors.

Thanks for Reading.