How to Add Safe Mode to Windows 10 Boot Menu Options

Error 501 - What is it?

Error 501 is an error code that sometimes may occur while you are using Internet Explorer on your Windows PC. The error message is displayed as:

'Error 501: Not implemented or not supported.'

Solution

Error Causes

It is difficult to narrow down the ultimate cause of error 501. This is because this error code can be triggered by multiple reasons such as:

• Third-party confliction or due to an incorrect HTTP 1.1 setting
• Improper program installation
• Changes in the “LocalAccountTokenFilterPolicy” registry key
• Corrupted Registry Database

Further Information and Manual Repair

The occurrence of this error regardless of what the cause is may cause a lot of inconvenience to you. And if not fixed on the time it can lead to system failure too. To repair the error 501, identifying the cause for the error really helps. By identifying the cause, you can easily select the most suitable solution to fix it.

Let us walk you through the solutions to fix error 501 timely:

Cause: Third-party conflicts or due to an incorrect HTTP 1.1 setting

Solution: If the above cause is the reason for error 501, this means the Local Policy Rights Settings have been altered. And because of that, Windows is not running your desired program. To solve this error simply log on to Windows as an administrator. Then run local computer policy snap-in. Open it and click on the computer configuration. Here you will see the Windows settings option. Click on it and then open security settings, local policies, and click on properties. Now in the add users section select the user which you want to add to the policy and save by pressing OK. After you’ve made changes, now try using internet explorer again. If this is the cause for the error pop, the error will not occur. If it still occurs then this means there is some other underlying cause for the error. Read on to find out.

Cause: Improper Program Installation

Solution: Error 501 may also occur due to improper program installation. The best way to resolve it is to uninstall recently installed programs.

Cause: Changes in the “LocalAccountTokenFilterPolicy” registry key

Solution: Sometimes during installation registry keys also get damaged or changed. If changes in the LocalAccountTokenFilterPolicy” registry key is the issue, then you need to alter the registry key ‘LocalAccountTokenFilterPolicy settings and its value. This key inside the registry database allows Windows to control the various access options that you have. However, due to wrong settings, it denies access and shows error 501 when you open Internet Explorer. To alter registry key settings can be tricky and complex if you are not a computer programmer. In such as scenario it is advisable to download Restoro. This is a user-friendly and multi-functional repair tool embedded with a powerful register cleaner. In addition to this, it also functions as anti-virus and a system optimizer.

Restoro Solution

Restoro is simple and easy to use. To operate this tool on your PC and to reset registry settings you don’t need any technical expertise or sound knowledge. Its smooth navigation makes it easy for users to scan and repair errors like 501 due to registry misconfiguration in seconds.  With this helper, you don’t have to modify Windows registry settings manually. It will do it automatically. Furthermore, if Error 501 is triggered by a corrupted registry database, you can run it to repair this issue too. It cleans and wipes out all the unnecessary and obsolete files that could be corrupting your registry. This includes junk files, internet history, and invalid registry entries. It clears up your hard disk space and repairs your corrupted registry. If your PC’s registry is damaged due to malicious software like viruses and malware, then it uses advanced antivirus to remove them from your system. It has a value-adding backup feature that enables you to create a backup of your files for data safety and recovery in case of loss during repair. Restoro is compatible with all Windows versions.

Starting with Restoro

Here are 3 simple steps to get started:

1. Click here to download Restoro.
2. Once the installation is complete, run it to scan for errors
3. After scanning the errors, simply click repair to resolve the issues including the error code 501.

Along with fixing error code 501 triggered by registry damage, it also repairs all other PC-related issues. It helps maintain a stable and error-free system for the longest time.

What is Bandoo?

Bandoo application, specifically product version 5.0.2.4762, is a bundled program. What does this mean? Simply, Bandoo, upon installation, installs additional programs, extensions, and add-ons to a computer and computer’s browser, without the knowledge of the user. This version of Bandoo concentrates on providing features for entertainment and also functionality/tools for backing up your computer files. Once executed, the file installs the iLivid Download Manager Software. Additional tools installed within the bundle include a Movie Toolbar and the thriving search engine ‘Ask.com.’ Technical details about Bandoo include: 

Digital Signature/Publisher:  Bandoo Media, Inc. Product Version: 5.0.2.4762 Entry Point:  0x000038AF

Assessment of Bandoo Potentially Unwanted Program

Interestingly, before the installation of Bandoo product version 5.0.2.4762 was complete, Spyhunter detected that the software was a PUP. After the installation was complete, product version 5.0.2.4762 of Bandoo added add-ons and extensions to both Internet Explorer and Chrome Browsers (these were the only 2 browsers used within the assessment). These appeared in the form of a Movie toolbar, providing quick access to movie trailers, reviews, ratings, and other video functionality, and ‘Ask’ (Ask.com) search engine.

Areas of Infiltration by Bandoo

Bandoo product version 5.0.2.4762 infiltrated several areas of the computer system. After installation, folders were neatly placed as files within all programs. Within “All Programs” there were 3 newly added programs. These included:

• iLivid
• Movies Search App for Chrome
• Movies Search App for Internet Explorer

The iLiVid application seems to be the main offer while the others, namely Movies App for Internet Explorer by Ask was featured as promotions or advertisements. Additionally, just below the 'END USER LICENSE AGREEMENT AND PRIVACY POLICY' a request was made that the user set Ask.com as both their homepage, new tab, and default search engine. This is just another well-concocted plan to get Internet users onto the 'Ask.com' search engine. Along with the 3 programs installed as a bundle,  a new folder was found within the computer's local drive. This program was termed OLBPre.

What is OLBPre?

OLBPre.exe is reputed as dangerous adware that weakens the security settings of a computer system. It's also covertly used for dropping files on a targeted computer, often without the user's consent or knowledge.

Manual Steps for Removal of Movie Search Apps

I found this removal pretty simple. Depending on your Operating System, there will be slight discrepancies in the manual removal steps. Using the Windows 8 (8.1) OS on your computer:

• Step 1: from your desktop, right-click on the ‘Start Button’.  A menu box will then appear.
• Step 2: from the menu box, click ‘Search’.
• Step 3: enter “Programs and Features” within the Input Box.
• Step 4: locate the installed apps. You should be able to see “Movies Search App for Chrome” & “Movies Search App for Internet Explorer”.
• Step 5: right-click on the names of the Apps (the ones you want to remove) when you’ve located them.
• Note: you will have to remove the apps one after the other.
• Step 6: after right-clicking the app, click the uninstall option (probably the only option available anyway).
• Note: If a box appears asking If you wish to ‘block’ or ‘allow’, select the allow option. That’s just the Publisher’s way to annoy you out of uninstalling the app.
• Step 7: follow instructions until the app is fully removed.
• Step 8: Repeat steps for the other app.

Since Bandoo also changed your search engine, you’ll have to reset that manually for Internet Explorer and Chrome. Follow the steps below:

• Step 1: Open your Internet Explorer browser.
• Step 2: Click the tool option located in the top right-hand corner of the page.
• Step 3: Click the “Internet Options” option.
• Step 4: Under the “General” tab, you’ll be able to see approximately 3 buttons. Click the button labeled ‘Use Default”.
• Step 5: At the bottom right-hand corner of the pop-up menu, select the “Apply” button and “OK”. That should do the trick.

Removal for Chrome Extension

This removal is simple.

• Step 1: Open your Chrome browser.
• Step 2: A pop-up box will be visible.
• Step 3: Click the “Remove from Chrome” option.

After removing the extensions/add-ons, perform another scan with Spyhunter. You’ll pick up a few threats. The second scan should clear up everything. To completely remove Bandoo from your computer, click here to download and install Spyhunter.

Default Taskbar inside Windows 11 is pretty good if we are talking about its height. Sitting at 48 pixels it is a pretty decent size considering functionality and size ratio but if you want to make it a little larger or smaller know that you can do that as well in order to customize it for your personal needs. Sadly in order to actually change height size, you will have to do it inside the registry editor, but worry not, we are here with you to guide you all the way, one step at a time. Also, note that you can only change Taskbar from normal size of 48px to either small of 32px or large gapping at 72px. Icons will also be scaled proportionally with the taskbar.

Guide

1. Press ⊞ WINDOWS + R to open the run dialog
2. Inside run dialog type in RegEdit and press ENTER
3. In registry editor locate and find HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced
4. Right Click on it to select it and create a new DWORD (32-bit) value
5. Name the value TaskbarSi
6. Inside TaskbarSi double click in order to set the value to 0 if you want a small size Taskbar, 1 is if you want to revert back to medium (standard one), or type in 2 if you want a large Taskbar.
7. Save and close the Registry editor
8. Reboot PC

And there you go, you have successfully changed Taskbar size inside Windows 11. If you want to revert back to standard size just repeat steps and place 1 as a value in point 6.

Error 2738 - What is it?

Error 2738 is associated with the VBScript engine. VBScript is the abbreviation for Visual Basic Scripting. It is an Active Scripting programming language developed by Microsoft and modeled on Visual Basic. It is used with a fast interpreter in a large variety of Microsoft environments. Error 2738 indicates that the VBScript engine is not registered properly on your PC. It occurs when you try to install or uninstall VBScript-supported applications on your system. The error message is displayed in the following format:

"Error 2738. Could not access VBScript run time for custom action."

Solution

Error Causes

There are several reasons for the error 2738 message pop up. These include: Incorrect or corrupt registry entries on your system. These entries interfere with VBScript support in Windows thereby generating such error codes.

• Removal of McAfee Antivirus
• Windows registry values are not updated accurately during the uninstallation of McAfee Software
• The Visual Basic Script is registered in the registry under the local user instead of the local machine

No matter what the cause of the error may be, it is recommended that you resolve the issue immediately without any delay.

Further Information and Manual Repair

Here are some of the easy and proven DIY methods to repair error 2738 on your PC:

Method 1

If the error 2738 occurs because the VBScript is not registered correctly, then follow these steps to resolve.

1. Go to the start menu, open Run, and type RegEdit in the box and then press OK. This will open the Windows Registry Editor.
2. Now type KEY_LOCAL_MACHINESOFTWAREClassesCLSID{B54F3741-5B07-11cf-A4B0-00AA004A55E8}InprocServer32, if the key does not have a data value of C:\Windows\System32\vbscript.dll then simply add it.
3. Now go to the All programs option and then Accessories.
4. Here right-click on Command Prompt and then ‘Run as Administrator’.
5. Now type egsvr32 vbscript.dll then press enter. After that type regsvr32 jscript.dll and then press enter.
6. Restart your PC to activate changes.

Method 2

Sometimes error 2738 may occur when you uninstall preinstalled MacAfee antivirus software on your system. Un-installation usually leaves some trace components in the registry. These components must be removed completely otherwise error codes like 2738 may keep occurring on your computer screen. In such an event, the best way to resolve it is to download the McAfee Consumer Product Removal utility from McAfee's official website. Save this file on your desktop. Double click the file and follow the steps to remove this software completely and successfully from your PC. Proper removal of the McAfee program will resolve error 2738 right away. But if the error still persists then try other methods illustrated below.

Method 3

Download Restoro to remove incorrect and corrupt registry entries on your system that may be interfering with VBScript support. Restoro is a new and easy-to-use PC Repair Tool deployed with an intuitive interface and a powerful registry cleaner. The registry cleaner removes all entries corrupting the registry, cleans it, and resumes it to its normal state. Click here to download Restoro.

What is Mastodon? Mastodon is an open-source microblogging network very similar to Twitter. You can make 500 characters post messages called toot (tweet), share videos or images, and follow other people. But unlike Twitter, Mastodon is decentralized, meaning the entire Mastodon is not run by a single company pulling all strings.

Mastodon can be used directly in your web browser or through a mobile client on a smartphone or tablet. It includes features that seem copied from Twitter-like replies, boosts (retweets), favorites (loves), a timeline view, blocking, and voluntary content warnings that hide sensitive content.

Mastodon also has some great features that Twitter does not have like automated post deletion for the older post of a certain age, requiring approval for follows without restricting your account, and opting out of search engine indexing.

Currently, there are also no ads on Mastodon meaning no ad tracking or ad network surveillance.

How Does Mastodon Work?

Mastodon is a social media network made of nodes called servers or instances each running special software meaning anyone can run their own Mastodon instance (if they have a proper dedicated server). When you have your own instance it can be linked in the federation or remain private, so individuals or companies can have control over individual Mastodon servers.

The software itself is open source based on the social networking protocol ActivityPub which was developed by WWW Consortium.

While using Mastodon, people sign up for accounts with specific instances. Once logged in, you can view a local timeline (of posts from that instance only) or, if the instance is federated with others, see a federated timeline comprised of toots from people in other instances. Mastodon users can send messages to each other using their Mastodon account names that are similar to email addresses in that they feature the server address as well as the user name.

It is no secret that a few days ago Facebook has been breach and tons of user accounts have been compromised. These kinds of things are very unpleasant experiences for both users and the company itself. User trust lowers significantly in the company and it can greatly increase the chances of users migrating to another platform. This just shows how much a hacker or security breach can produce damage to the business. Sadly we can not offer you guidance or assistance in recovering your stolen data nor can we provide you with removing your data from the hands of the attacker. What we can do is to provide you with information has your data been stolen. Threat actor released the personal information for 533,313,128 Facebook users on a hacking forum, including mobile numbers, name, gender, location, relationship status, occupation, date of birth, and email addresses. This data was originally sold in private sales after being collected in 2019 using a bug in the 'Add Friend' feature on Facebook. Facebook had closed this vulnerability soon after it was discovered, but threat actors continued to circulate the data until it was finally released practically for free. Since then, Troy Hunt has added the leaked data to his Have I Been Pwned data breach notification service to help users determine if a Facebook member's data was exposed in the leak. Go to the site and enter your email address to check and see if your data has been compromised.

If you encounter a Blue Screen error that points out to the CMUDA.sys, read on as this post will guide you in fixing it. The CMUDA.sys file is a Windows operating system driver file that is related to the USB Device Audio capabilities of a computer. There are times when this file causes Blue Screen error due to some conflicts in RAM or some incompatible firmware or hard disk issues, corrupted drivers or malware infection, and so on. There are various Blue Screen errors that are related to the CMUDA.sys file such as:

• KMODE EXCEPTION NOT HANDLED
• PAGE FAULT IN A NONPAGED AREA
• IRQL NOT LESS OR EQUAL
• SYSTEM THREAD EXCEPTION NOT HANDLED (CMUSBDAC.sys)

In most cases, the CMUDA.sys file usually triggers the SYSTEM_THREAD_EXCEPTION_NOT_HANDLED Blue Screen error. Although this Blue Screen error may seem complicated, its workarounds are straightforward so you won’t have any problems in following them.

Option 1 – Try to update or rollback your device drivers

If the first option didn’t work for you, then it’s time to either update or roll back the device drivers. It is most likely that after you updated your Windows computer that your driver also needs a refresh. On the other hand, if you have just updated your device drivers then you need to roll back the drivers to their previous versions. Whichever applies to you, refer to the steps below.

• Open the Devices Manager from the Win X Menu.
• After opening the Device Manager, locate the device drivers that are marked with a small yellow exclamation mark icon and right-click on each one to open their Properties. On the other hand, you can also look for sub-entries under Sound, video, and game controllers like the C-Media USB Audio Class
• After that, switch to the Driver tab and click on the Uninstall Device button.
• Follow the screen option to completely uninstall it.
• Finally, restart your computer. It will just reinstall the device drivers automatically.

Note: You can install a dedicated driver on your computer in case you have it or you could also look for it directly from the website of the manufacturer. You can download the as C-Media USB Audio Class driver from the cmedia.com website.

Option 2 – Try to recreate the CMUDA.sys file

The first thing you can try is to recreate the CMUDA.sys file. Every time your Windows 10 PC boots up, it looks for all the system drivers in place and if it is unable to find them, it tries to create them. Which is why if you remove your corrupt driver file, chances are, you might get a fixed file recreated just for you. How? Refer to the steps below.

• Boot your Windows 10 PC in Safe Mode.
• Then open File Explorer and navigate to this location: C:/Windows/System32/drivers
• From there, look for the file named sys and rename it to CMUDA.old.

Note: As you can see, the file’s extension has changed from .sys to .old.

• Now restart your computer and check if the CMUDA.sys Blue Screen error is now fixed.

Option 3 – Run the Blue Screen Troubleshooter

The Blue Screen troubleshooter is a built-in tool in Windows 10 that helps users in fixing BSOD errors. It can be found on the Settings Troubleshooters page. To use it, refer to these steps:

• Tap the Win + I keys to open the Settings panel.
• Then go to Update & Security > Troubleshoot.
• After that, look for the option called “Blue Screen” on your right-hand side and then click the “Run the troubleshooter” button to run the Blue Screen Troubleshooter and then follow the next on-screen options. Note that you might have to boot your PC into Safe Mode.

On the other hand, you can also try running the online Windows 10 Blue Screen troubleshooter from Microsoft. It is a wizard that could help you fix any Stop errors related to the CMUDA.sys file and will offer you helpful links as you use it.

Option 4 – Try running the DISM tool

You can try running the Deployment Imaging and Servicing Management or DISM tool to fix the Wdf01000.sys Blue Screen error. 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 – Run System Restore

Running System Restore might also help in fixing Blue Screen errors related to the CMUDA.sys file.

• Tap the Win + R keys to open the Run dialog box.
• After that, type in “sysdm.cpl” in the field and tap Enter.
• Next, go to the System Protection tab then click the System Restore button. This will open a new window where you have to select your preferred System Restore point.
• After that, follow the on-screen instructions to finish the process and then restart your computer and check if the problem is fixed or not.

Default applications in previous Windows versions were a pretty straightforward process. The user went to the settings application and picked for each category which application he would like to choose from the list of installed ones. In Windows 11 things are little changed. In this article, we will show you how to choose the default internet browser inside Windows 11, and sadly it is a more tedious task than in previous versions.

Choosing default browser in settings

As in previous versions of the Windows operating system you will need to use the settings application in order to change your default Internet browser. Previously, in Windows 10, a variety of general categories like email, web browser, and photo viewer were all listed under the Default Apps section of the Settings panel. It was easy to click on one of those categories and click on the option you like best from the small pop-up suggestion window. In the Windows 11 Insider Build, you’ll see a gauche list of an individual file or link types that you’ll need to specify your preferred browser for. The types include: HTM, HTML, PDF, SHTML, SVG, WEBP, SHT, FTP, HTTP, and HTTPS. There are additional optional types you can specify your preferred browser for as well. The issue here is in order to use a single browser which most users do you will have to go through each file type and set your preferred one. I am really not sure why this was introduced or why it has to be this way, all I can do is hope that in the final release of Windows 11 this feature will be rolled back as it used to be and that you could set your default browser in just one simple click.

There are times when the WMI Repository gets corrupted which results in the Provider Load Failure. To resolve this issue, you need to repair or rebuild the WMI Repository in your Windows 10 computer. In this post, you will be guided on how exactly you can do that. In case you don’t know, the WMI which stands for Windows Management Instrumentation is a set of specifications from Microsoft to consolidate the management of devices and applications in a network. The WMI is a database that stores meta-information and definitions for WMI classes. Using only these, the conditions of the systems can be known. You can find the WMI Repository in %windir%System32WbemRepository. It provides end-users with the status of the local or remote computer system. Keep in mind that you must not use this on the Server 2012 Cluster machine. Although there are command-line tools that can fix or restore the Windows Management Instrumentation repository. However, Microsoft suggests that it’s better if you verify if there is corruption. Here are a list of errors as well as permission issues you might encounter:

• Unable to connect to root default or rootcimv2 namespaces. It fails with the error code “0x80041002” pointing to “WBEM_E_NOT_FOUND.”
• 0x80041010 WBEM_E_INVALID_CLASS
• When you open Computer Management and Right Click on Computer Management (Local) and select Properties, you get the following error: “ WMI: Not Found” or it hangs trying to connect
• Trying to use wbemtest , and it hangs
• Schemas/Objects missing
• Strange connection/operation errors (0x8007054e)

To verify if there is corruption, you can try running the following command in an elevated Command Prompt:

winmgmt /verifyrepository

 After you enter the command, if there is a response saying, “repository is not consistent”, then the repository has an issue. If not, then something else is causing the problem. Since you are certain that corruption exists in the WMI repository, then here are some suggestions you need to check out to repair or rebuild the WMI repository.

Option 1 – Try to reset WMI Repository

• Type “command prompt” in the Start Search and right-click on Command Prompt from the search results and then select “Run as administrator”.
• After opening Command Prompt with admin privileges, type and enter this command: winmmgmt /salvagerepository

The command you entered is used when the winmmgmt command performs a consistency check. So if an inconsistency is detected, it will rebuild the repository.

• Next, execute this command to see if the WMI repository now comes back as consistent: winmgmt /verifyrepository

This command will perform a consistency check on the WMI repository.

• If it states that the WMI repository is not consistent, then you need to type and enter this command: winmgmt /resetrepository

This command is used to reset the repository to its initial state when the operating system was first installed.

Option 2 – Try to force recover the WMI Repository

The WMI Repository comes with a built-in self-recovery process so when the WMI service restarts or detects any corruption, it will automatically trigger the self-recovery procedure. This can happen in two ways:

• AutoRestore: This will use the backup images if the Volume Shadow copy or VSS backup is turned on.
• AutoRecovery: The rebuilding process will generate fresh images of the WMI repository based on the registered MOFs. The MOFs are available in the registry located at HKLMSoftwareMicrosoftWBEMCIMOM: Autorecover MOFs

Note: Autorecover MOFs is a key so double click on it to check its value. On the other hand, if the self-recovery procedure does not work, you can try to use the force-recovery process instead. How? Refer to these steps:

• First, you need to check the reg key value is empty or not under this registry path: HKLMSoftwareMicrosoftWBEMCIMOMAutorecover MOFs
• If the reg key value is empty, you have to copy-paste the reg key value from another computer. Just make sure that it’s from the System which is equivalent to the computer in question.
• Next, type and enter this command: Winmgmt /resetrepository
• After you enter the command, if you get an error that says, “WMI repository reset failed. Error code:0x8007041B. Facility: Win32”, then you have to stop all the Dependency Services on the WMI service by running the following commands:
  • net stop winmgmt /y
  • Winmgmt /resetrepository

This should fix the problem.

As you know, games with good graphics and fast play are definitely resource-intensive and can consume a lot of storage space on your computer. Because of that, they have to be compressed before it gets downloaded to your computer and then unpacked to the hard drive before it gets installed. However, if an error occurs in your computer’s RAM during the installation process or if your hard disk does not have enough memory to handle the process, then you might encounter the isDone.dll error which states:

“An error occurred when unpacking, Unarc.dll returned error code -1, ERROR: archive data corrupted (decompression fails).”

If you encounter the isDone.dll error message on your Windows 10 computer, then read on as this post will show you how you can fix it. This error has something to do with the incomplete installation of PC games or files of larger size. The ISDone.dll error appears due to faulty Unarc.dll file residing in the System32 folder on 32-bit operating systems and the SysWOW64 folder on 64-bit systems. So, if you see this error message, then, it means your computer was not able to read installation archive files.

What is Unarc.dll file?

Unarc.dll is a dynamic link library for Windows. Some applications or games require this file to function properly. So, if it goes missing or, an error occurs when you start a game or an application, you may get various kinds of errors. ISDone.dll error while playing games on PC

Option 1 – Try to reinstall the game

The isDone.dll error could also be caused by the installation of an unknown application. Or it could also be caused by an outdated or corrupted application. In other words, if the game you are trying to install is broken or corrupted, then it’s no wonder why you’re getting the isDone.dll error. To fix this, make sure that you download the latest updated version of the game and then try to install it again and see if the problem is resolved or not.

Option 2 – Try to re-register the .dll file using the Regsvr32 tool

• The first thing you have to do is to locate the DLL file named dll on your computer and rename it to Unarc-bak.dll.
• Next, copy the Unarc.dll file from another well-functioning computer and save it on your desktop.
• After that, move the DLL file you just copied to the System32 folder if you are using a 32-bit operating system, or the SysWOW64 folder if you are using a 64-bit operating system.
• Now you have to register the new DLL file and you can do that using Windows PowerShell.
• Open Windows PowerShell and then execute this command if you have placed the DLL file in the System32 folder: regsvr32 %systemroot%System32unarc.dll
• On the other hand, if you have placed the DLL file in the SysWOW64 folder, then execute this command: regsvr32 %systemroot%SysWOW64unarc.dll
• Once you’re done, a message will be displayed saying that the DLL file was registered.
• Restart your computer and check if the problem is now fixed.

Option 3 – Troubleshoot the isDone.dll error in a Clean Boot State

You can also troubleshoot the isDone.dll error in a Clean Boot state. It could be that there are some third-party applications in your computer that're preventing the application from getting installed and to isolate this possibility, you need to boot your computer in a Clean Boot State and then try installing the program again. Putting your computer in this state can help you identify which program is the culprit and thus isolates the problem. In a Clean Boot state, your computer will start using only the pre-selected minimal set of drivers and startup programs. Note that you have to disable and enable one process at a time.

• 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.)
• After you’ve set your computer into a Clean Boot State, make sure that you’re signed in as administrator and then try to install the application again.

Option 4 – Try updating or reinstalling your Graphics drivers

Updating or reinstalling the Graphics drivers in your computer can also help in resolving compatibility issues between the operating system and the driver that might have caused the isDone.dll error.

• First, boot your computer into Safe Mode.
• After that, tap the Win + R keys to launch Run.
• Type in devmgmt.msc into the box and tap Enter or click OK to open the Device Manager.
• After that, a list of device drivers will be displayed. From there, look for the Display Adapters and click on them.
• After that, right-click on each entry under the Display Adapters and select the “Uninstall Device” option from the menu.
• Now restart your computer.
• After restarting your computer, go to the Settings app and Check for Updates in the Windows Update section.

Note: You also have the option to go directly to the website of your graphics card manufacturers like NVIDIA, Intel, or AMD and go to the section called Drivers then check if there’s a new available update – if there is, download and install it.

Option 5 – Try scanning your computer using Windows Defender

The isDone.dll error might also be infected with malware or virus and to eliminate it, 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.