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“I’m trying to update my iTunes to latest version 12.7. After downloading iTunes 12.7, I started the installation process but got the notification that “The Windows Installer Service could not be accessed. This can occur if the Windows Installer is not correctly installed. Contact your support personnel for assistance.” Please, what can I do to fix this error? – Mark”
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The complaint above describes what an iTunes user is going through, but our research on “The Windows Installer Service could not be accessed” error shows that many of us are still facing this challenge. We’ve discussed what happens when Windows Installer is not working, and some feasible solutions to this error in the following paragraphs.
What Happens When Windows Installer Not Working
When Windows Installer Service is not working, the following error message will be displayed:
- Error Message 1: The Windows Installer Service could not be accessed.
- Error Message 2: The Windows Installer Service couldn’t be started.
- Error Message 3: Could not start the Windows Installer service on Local Computer. Error 5: Access is denied.
The above error messages are most likely to be seen when installing, updating or uninstalling a program like iTunes.
- Method 1: Fix “Windows Installer Not Working” with TunesFix
- Method 2: Reset Windows Installer Service Settings in the Registry
- Method 3: Start the Windows Installer Service
1. Fix “Windows Installer Not Working” with TunesFix
You may have tried some methods but to no avail. If you don’t want to waste time, you can directly take advantage of iMyFone TunesFix. This software can fix all iTunes related Windows Installer Service errors and issues including “Windows Installer Service not working” when updating, installing or uninstalling iTunes software.
TunesFix has the features and capacity to improve your PC performance by getting rid of issues and errors that appear on Windows when you install or upgrade iTunes. It can also fix other iTunes issues, errors and problems.
TunesFix Repairs All the Issues Related to iTunes
- Easily solve Windows installer errors, like not running, registry is corrupt or incorrectly configured, etc.
- Repair Windows install errors without damaging any other data
- Automatically detect your iTunes installer and provide the corresponding repair
- Also fix iTunes backup, restore, uninstall, connect, update and any other issues
- Successfully remove iTunes and related components even from a damaged/corrupted installation
- Two clean option to keep iTunes clean and run smoothly
Steps to Fix “Windows Installer Not Working” While Updating/Installing iTunes
Step 1: Download and install iMyFone TunesFix on your PC. Launch TunesFix and it will automatically detect your iTunes and its necessary components.
Step 2: Once it shows you the specific status of your iTunes, you can click on the “Repair” tab to fix the issue.
- If it doesn’t show you your iTunes is damage, choose “Fix iTunes Install/Update Issues” mode and click “Repair” to proceed.
Step 3: When it’s done, you will find that the iTunes is successfully installed on your PC.
You may be interested: Save 30% to Get iMyFone TunesFix Official Registration Code >>
2. Reset Windows Installer Service Settings in the Registry
Many iTunes/Windows users have recorded success in fixing Windows Installer Service could not be accessed on windows by resetting Microsoft Installer Service registry. However, this solution is a risky one because modifying your registry and results may lead to unexpected consequences.
Step 1: Open your Windows search box next to your Start Menu, and search for “Notepad”. Click on “Notepad” under “Best match” results.
Step 2: Copy and paste the following codes into the notepad document file you just opened:
- Windows Registry Editor Version 5.00[HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesmsiserver]'DisplayName'='@%SystemRoot%system32msimsg.dll,-27'
'ImagePath'=hex(2):25,00,73,00,79,00,73,00,74,00,65,00,6d,00,72,00,6f,00,6f,00,
74,00,25,00,5c,00,73,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,6d,
00,73,00,69,00,65,00,78,00,65,00,63,00,20,00,2f,00,56,00,00,00
'Description'='@%SystemRoot%system32msimsg.dll,-32'
'ObjectName'='LocalSystem'
'ErrorControl'=dword:00000001
'Start'=dword:00000003
'Type'=dword:00000010
'DependOnService'=hex(7):72,00,70,00,63,00,73,00,73,00,00,00,00,00
'ServiceSidType'=dword:00000001
'RequiredPrivileges'=hex(7):53,00,65,00,54,00,63,00,62,00,50,00,72,00,69,00,76, 00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,43,00,72,00,65,00,61,00, 74,00,65,00,50,00,61,00,67,00,65,00,66,00,69,00,6c,00,65,00,50,00,72,00,69,
00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,4c,00,6f,00,63,00, 6b,00,4d,00,65,00,6d,00,6f,00,72,00,79,00,50,00,72,00,69,00,76,00,69,00,6c,
00,65,00,67,00,65,00,00,00,53,00,65,00,49,00,6e,00,63,00,72,00,65,00,61,00,
73,00,65,00,42,00,61,00,73,00,65,00,50,00,72,00,69,00,6f,00,72,00,69,00,74, 00,79,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,
65,00,43,00,72,00,65,00,61,00,74,00,65,00,50,00,65,00,72,00,6d,00,61,00,6e,
00,65,00,6e,00,74,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,
00,00,53,00,65,00,41,00,75,00,64,00,69,00,74,00,50,00,72,00,69,00,76,00,69,
00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,53,00,65,00,63,00,75,00,72,00,
69,00,74,00,79,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,
00,53,00,65,00,43,00,68,00,61,00,6e,00,67,00,65,00,4e,00,6f,00,74,00,69,00,
66,00,79,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,
00,65,00,50,00,72,00,6f,00,66,00,69,00,6c,00,65,00,53,00,69,00,6e,00,67,00,
6c,00,65,00,50,00,72,00,6f,00,63,00,65,00,73,00,73,00,50,00,72,00,69,00,76,
00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,49,00,6d,00,70,00,65,00,
72,00,73,00,6f,00,6e,00,61,00,74,00,65,00,50,00,72,00,69,00,76,00,69,00,6c,
00,65,00,67,00,65,00,00,00,53,00,65,00,43,00,72,00,65,00,61,00,74,00,65,00,
47,00,6c,00,6f,00,62,00,61,00,6c,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,
00,67,00,65,00,00,00,53,00,65,00,41,00,73,00,73,00,69,00,67,00,6e,00,50,00,
72,00,69,00,6d,00,61,00,72,00,79,00,54,00,6f,00,6b,00,65,00,6e,00,50,00,72,
00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,52,00,65,00, 73,00,74,00,6f,00,72,00,65,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67, 00,65,00,00,00,53,00,65,00,49,00,6e,00,63,00,72,00,65,00,61,00,73,00,65,00, 51,00,75,00,6f,00,74,00,61,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67, 00,65,00,00,00,53,00,65,00,53,00,68,00,75,00,74,00,64,00,6f,00,77,00,6e,00, 50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,54, 00,61,00,6b,00,65,00,4f,00,77,00,6e,00,65,00,72,00,73,00,68,00,69,00,70,00, 50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,4c, 00,6f,00,61,00,64,00,44,00,72,00,69,00,76,00,65,00,72,00,50,00,72,00,69,00,
76,00,69,00,6c,00,65,00,67,00,65,00,00,00,00,00
'FailureActions'=hex:84,03,00,00,00,00,00,00,00,00,00,00,03,00,00,00,14,00,00, 00,01,00,00,00,c0,d4,01,00,01,00,00,00,e0,93,04,00,00,00,00,00,00,00,00,00[HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesmsiserverEnum]'0'='RootLEGACY_MSISERVER0000'
'Count'=dword:00000001
'NextInstance'=dword:00000001
Step 3: Click on “File”, select “Save As”, and select a location to save the file. Name the file as Misirepair.reg. Select “All Files” under “Save as type” then click “Save”.
Step 4: Go to the location where you saved the file and right-click on it, then select “Run as Administrator”. If you’re prompted to confirm your action, just do so.
After resetting Windows Installer Service registry, try and update/install iTunes again.
3. Start the Windows Installer Service
Manually starting Windows Installer Service can be a good solution to its errors. To manually start Windows installer service, just follow these steps:
Step 1: Click Start and type CMD in the search bar.
Step 2: Find cmd.exe and right click on it. Choose Run as Administrator.
Step 3: Enter net start MSIServer and press Enter.
You have succeeded in starting Windows Installer Service manually.
![Windows Installer Not Working Windows Installer Not Working](/uploads/1/2/4/9/124950966/478568827.jpg)
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The Windows Store, Microsoft Store, whatever you want to call it, isn’t the most popular store out there, riddled as it is with bugs, crashes, and a tendency to just outright not work. It does have some good stuff in it, though (like these free apps), and if you’re a gamer, then you may find that you need to have access to it to download games from the Microsoft stable like Forza Horizon 4 and Gears of War 4.
So it’s good to have it working. If your Windows Store stops working, however, here are the best fixes to get it back up and running.
Windows Installer Package For Windows 10
The Basics
Before getting to the proper fixes, there’s a small checklist of things you should confirm before you carry on:
- Windows is up to date
- UAC (User Account Control) is enabled
- Your Video Card/GPU drivers are up to date
If these are all in place but your Windows Store still isn’t working, proceed onto the following fixes.
Change Your DNS Address
One of the more common error messages that may crop up when your Windows Store isn’t working is the ‘0x80131500’ error. This can happen if your PC is connecting to the internet through certain DNS servers, which are automatically assigned by your ISP and/or home networking setup.
To change your DNS server address, go to “Settings (click Start then the cog icon) -> Network & Internet -> Change adapter options”.
Next, right-click your network connection, click Properties, then in the new window scroll down to “Internet Protocol Version 4 (TCP/IPv4)”, right-click it and click Properties.
In the “Preferred DNS server” box, enter the address 1.1.1.1, which is Cloudfare’s universal DNS resolver. Click OK, and hopefully the Windows Store will be back up and running.
Change the Computer’s Time
One of the more effective yet somewhat strange methods of solving Windows 10 Store crashes is making sure your computer’s clock is accurate. When Windows Store boots up, it tries to get a sync between the store’s time and your own. If the two times are different, the store will sometimes refuse to load. It’s very frustrating but also very easy to fix.
1. To make sure your click is up to date, right-click the taskbar and click “Adjust date/time.”
Windows Installer Not Running
2. First, go to “Set time automatically,” and turn it off by clicking the switch underneath it.
3. Once it has finished processing your request, switch it back on again. This will update the time so that it’s at its most accurate. Make sure your time zone is set correctly, too!
Once done, try to open the Windows Store again and see if the crashes persist.
Set Yourself as Owner of the WindowsApps Folder
Sometimes the problem lies in the fact that you don’t “own” the WindowsApp file on your computer. It may seem a little odd, but sometimes files are modified to not allow you access to them, despite being on your machine and associated with your account. Telling the computer to give you total control over the WindowsApp folder will sometimes allow the Store to do its job properly.
To do this you’re going to need to perform a lot of security-based actions on the WindowsApps folder. Thankfully, we’ve already published a guide in the past that details step-by-step how to access your WindowsApps folder, so check it out.
Clear the Windows Store Cache
The simplest fix is to reset the Windows Store cache, which may have become cluttered and buggy over time. To do this, hit Ctrl + R, then in the Run box type
wsreset
and hit Enter. A command prompt window should show up, which indicates that Windows is resetting the Store cache. When the window closes, the job is done, so you can try opening the Store again to see if it works properly.Reinstall the Windows Store
It may seem radical, but sometimes the best way to fix the problems with the Windows Store is to reinstall. Unfortunately, it’s not quite as simple as just going to your “Apps and Features” list. (You didn’t think Microsoft would make it that easy, did you?)
You’ll need to uninstall the Windows Store through the Powershell.
1. Press the Windows key, type
powershell
, right-click it in the search results, then “Run as administrator.”2. In Powershell, type
get-appxpackage -allusers
3. Find the entry for “Microsoft.WindowsStore,” and copy the information in the “PackageFullName” line to the clipboard.
4. On a new line in the Powershell, type
remove-appxpackage
followed by a space, then paste over the PackageName you copied over to the clipboard. For me this looked like:but for you it may vary slightly depending on your Windows Store version number.
5. Hit Enter and the Windows Store will be gone. Reboot your PC.
6. To reinstall the Windows Store, you’ll need to go back to Powershell as an admin and type the following:
Disable Proxy Server
If you have a proxy server (or VPN for that matter) enabled, then it could be sending your Windows Store out of whack because your PC’s IP address doesn’t correspond with the details on your Windows account. So first, if you have a VPN enabled, switch it off. Proxy connections, on the other hand, are a bit more sneaky, and you might not even know if you have one switched on.
To check this and switch off your proxy connection, click the Start button, then the “Settings” icon. In the Settings window, click “Network & Internet Proxy” in the pane on the left, and then make sure the “Use a proxy server” slider is switched off.
Reset Windows Store
As of the Anniversary Update, you have the option to reset Windows apps, which will clear their cache and data, essentially making them like new. It’s a little more drastic than the “WS Reset” option, as this will clear all your preferences, login details, settings and so on. (Don’t worry, you’ll still keep the app you installed from the Windows Store.)
To do this, right-click the “Start button -> Apps and Features,” then scroll down to “Store’ in your list of Apps & Features. Click it, then click “Advanced options,” and in the new window click Reset. You’ll receive a warning that you’ll lose data on this app. Click “Reset” again, and you’re done.
Re-register the Windows Store App
Another form of resetting the Windows Store app is to get it to re-register on your PC. Click Start, type
cmd
, then right-click the Command Prompt when it appears in the results and click “Run as administrator.”In Command Prompt, type the following command to re-register the Windows Store on your PC:
Once you’ve done this, the Windows Store should re-register and hopefully be back in good working order.
Conclusion
These fixes are helpful, not only for the Windows Store, but most can be applied to any UWP/Windows app. Making sure you’re not on a proxy server is important to certain Internet-dependent apps, while the “Reset” function can also be applied to any UWP app. Transferable fixes – gotta love them!
This article was updated in June 2019 and some of the obsolete methods were removed.
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