What is the Root Cause of The Failed to Connect to a Windows Service Error?

Frankly, I could not figure out what caused this Error. I usually put my computer on Hibernate mode and I tend not to shutdown my computer often. That´s why it was hard to pinpoint the exact cause. But it seems that there are many scenarios that could cause this error on windows Vista and Windows 7 operating systems. It could be any of the following:

1. The computer got infected by a virus or a worm.
2. Your registry cleaner tool, if you use one, deleted some important registry values.
3. A third-party software installation or update.
4. Antivirus or other security software, either an update or a new installation.
5. Believe it or not, Microsoft Windows updates.
6. Installation of a new driver, or a driver update.
7. And probably other reasons.

My Solution To Fix the Failed to Connect to a Windows Service Error

In my case, The Failed to Connect to a Windows Service happened after I restarted my computer. This error affects only the User Profile Service and the Themes services.

But I found a reasonable solution for the User Profile Service and Themes services not starting. This solution does not address the root cause of the problem. But it works very nicely for me, and I thought I will share it with you. Here is what you need to do:

1. Create a NEW User Account with Administrative privileges. {Check Appx3 below for detailed instructions.}
2. Restart your computer with your NEW User Account.
3. Manually restart the User Profile Service. {Check Appx1 below for detailed instructions.}
4. LogOff your computer, (DO NOT RESTART YOUR COMPUTER).
5. Log back On with your ´Original´ User Account (NOT the NEW User Account that you just created)
6. You should be able to get your User Profile back as you always had it since it already started.

If you notice that your Windows Theme, is different and it looks like ´Windows Classic´ theme. Do the following:

1. Probably your Themes service did not start. Manually restart the Themes service. {Check Appx6 below for detailed instructions.}
2. Then Personalize Your Computer. {Check Appx7 below for detailed instructions.}

Keep, in mind every time I shutdown the computer I have to redo the steps above. But they are very simple and they don´t bother me at all.

Notes:

1. Update (Nov. 7, 2011): Sometimes when you restart the computer, and you get the Black screen and the User Profile Service not starting. All you have to do is: Manually restart the User Profile Service (toggle it Stop/Restart if you have to), then LogOff and Log back On to your computer with the same User Account that you logged-in with. Thus bypassing the NEW User Account method that I discussed above. This is even simpler method than creating a NEW User Account, and it also works perfectly for me.
2. In my case, when I run my computer in safe mode my user profile is not corrupted. With this info in mind, I am still not able to pinpoint the root cause.
3. Why is it possible that the root cause is some Windows updates. Because windows update can change how long some services take to get up and running, and thus windows Operating system does not or cannot wait for these services to start. A computer restart will simply reproduces the problem. What is required is a LogOff/LogOn. This gave the services time enough to start up. A Permanent solution, would be to uninstall recent updates, by doing system restore.
4. In my case, a system restore did not work for me, even though I went at least two weeks earlier.
5. I tried Starting up the computer with, Using Last Known Good Configuration, but it didn´t fix the problem either.
6. I tried many other possible fixes, which need another post on their own, with no results.

Other Possible Solutions-1

This is quoted from the Microsoft Answers. It might provide other possible solutions to the Failed to Connect to a Windows Service – Windows could not connect to the User Profile Service error and might be a permanent fix that addresses the root cause.

Could not connect to the User Profile Service

Question:

I can not log into Windows properly. When I boot up and select my user account (also the sole administrator account, it spends an abnormally long time in the “Starting” screen, then I get the following message pop up from the notification area:
“Failed to connect to a windows service. Windows could not connect to the User Profile Service service. This problem prevents limited users from logging on to the system. As an administrative user, you can review…”

This all appears on just a black desktop with only the Recycle bin icon on it, and the classic Windows Start button. What´s the solution here?

Answer1:

It sounds like you are up and running only because of using a system restore to go back to when your system is working. Now you want to know what caused it. Usually, when the above error occurs, it is because of a corrupt user profile. The best way to correct this issue is to delete the user profile.

1. Go to Start button .
2. Right click on Computer.
3. Go to Properties.
4. Go to Advanced System Properties on the left pane.
5. Select the Advanced Tab.
6. Go to the User Profile Section and click on Settings button
7. Find the profile for the <USER NAME> you want to delete and select the delete button. (This is the preferred way of deleting the local profile in Windows Vista).
8. Login again and you will get a new profile.
9. To get your favorites back, go to the old profile under C:\users and copy over the data manually.

The only way to pinpoint what caused the error with user profile; is to try and reproduce it. If you haven´t installed the Windows Update, then you can go to Windows Updates and see what updates are to be installed and download them manually and install them one at a time. In between the installs, make sure you have a restore point that you can go back to if needed. Once an update is installed, then log off and log back (or reboot if needed by the update) and see if you get the user profile error. If the error occurs, then go to Services and see if the User Profile service is running and set to Automatic.

If you are not able to do anything when the problem occurs, then try to boot in safe mode by using the F8 key and see if the problem happens in safe mode.

You can also look in the event viewer to see if there is any events dealing with User Profile or Windows Update errors. To get to event viewer, you can type in eventvwr.msc from the Start Search box. This will bring up the Event Viewer and you can review the summary logs and see what types of errors you are experiencing.

Answer2:

We would like you to answer a few questions to help better troubleshoot the issue you are having.

1. Do you know of any software installs or system changes that took place when it started happening?
2. Are you using any type of third party antivirus or security applications? If so, try disabling them temporarily and see if you have the same issue.

Also, do you have another User account you can test with to see if you have the same issue? If not, follow the instructions below to create a new User account and see what kind of results you get.

1. Click the Start Button , and then click Control Panel.
2. Click Classic View in left panel.
3. Double-click User Accounts.
4. Click Manage another user account.
5. Click Create a new account, and type the name (whatever you want for a name)
6. Choose account type as Computer administrator.
7. Click Create Account.
8. Log Off and log On with the NEW account.

Test with the new User account and let us know the results.

Other Possible Solutions-2

This is also quoted from the Windows Answers. It might provide more solutions to the Failed to connect to a Windows Service – Windows could not connect to the User Profile Service error and might be a permanent fix that addresses the root cause.

Failed to connect to a windows service – Windows could not connect to the User Profile Service.

Question:

When I restarted my computer, my theme is set back to Windows classic and the only thing on my desktop is the recycling. The background was blue I believe. I look at my task bar in the bottom right and a message comes up, saying: “Failed to connect to a windows service – Windows could not connect to the User Profile Service service. This problem prevents limited users from logging onto the system. As an administrative user, you can review the System Event Log for details about why the service didn´t respond.”

I looked up the error messages on google and fixed my desktop back to normal after a few reboots. But my theme still won´t go back to Vista and half the time my desktop is different than normal. I ran a Malware Bytes scan and removed a Trojan.Fraudpack and a Rogue.Antivirus. So then I try a reboot but the problem still persists. Sometimes when i log on the desktop has bigger icons and my settings are different and other times it works just like normal and all my settings are correct. I think it´s just not recognizing my user Account.

I viewed the System Event Log and found quite a few errors. The user profile service error was in there. It says the problem was: “The service didn´t respond to the start or control request in a timely fashion.” Anyone know how to fix this?

Answer:

Do you remember making any software/hardware changes after which the issue started? Try the steps below and check if it helps.

Step 1: Check if the issue persists in Safe Mode. If the issue doesn´t persists in safe mode the try a clean boot troubleshooting.

Start your computer in safe mode

Step 2: Place the computer in a clean boot state and troubleshoot the issue.

How to troubleshoot a problem by performing a clean boot in Windows Vista or in Windows 7

(Perform a clean boot)

If your issue is resolved after performing Clean Boot, then follow the steps mentioned in the following 929135-KB article to narrow down the exact source.

Also, see the section on how return your computer to a Normal startup mode by following the steps under “Reset the computer to start as usual”, after performing the clean boot troubleshooting.

Step 3: Create a new user account and check if it helps.

Create a user account
Fix a corrupted user profile

Appx1: How To Manually Start the User Profile Service in Windows Vista

A Windows service is a long-running executable that performs specific functions and is designed not to require user intervention. Windows services can be configured to start when the operating system is booted and run in the background as long as Windows is running, or they can be started manually when required. You must have administrator privileges to gain full functionality in the Services console.

The User Profile Service is responsible for loading and unloading user profiles. If the service is stopped or disabled, users will no longer be able to successfully LogOn or LogOff, applications may have problem getting to users´ data and components registered to receive profile event notifications will not receive them.

If the User Profile Service did not start, here is how to manually restart it. The steps for Windows 7 are the same or very similar.

1. Click the Start Button , type services.msc at the search box to open the Services Console.
2. Scroll all the way down, and click on the User Profile Service to open the dialog box.
3. In the General tab make sure the the Startup type is set to Automatic. Also in the Service status: click the Start button then press OK. Note that even if the Service status: is displaying “Started”, you could click Stop button and then Start button and then press OK.

References

• Manage services in Windows Vista
• How To Manage Windows Vista Services

Appx2: How To Fix a Corrupted User Profile {Windows Vista/7}

Depending on you Operating System, follow the instructions in the references below.

• Windows Vista – Fix a corrupted user profile
• Windows 7 – Fix a corrupted user profile

Appx3: How To Create a User Account {Windows Vista/7}

User accounts make it so that several people can share a single computer. Each person can have a separate user account with unique settings and preferences. User accounts also control the files and programs you can access and what types of changes you can make to the computer.

• Windows Vista – Create a User Account
• Windows 7 – Create a User Account

Appx4: How To Start your Computer in Safe Mode {Windows Vista/7}

Safe mode is a troubleshooting option for Windows that starts your computer in a limited state. Only the basic files and drivers necessary to run Windows are started. The words “Safe Mode” appear in the corners of the display to identify which Windows mode you are using.

• Windows Vista – Advanced startup options including safe mode
• Windows Vista – Starting your computer in safe mode

Appx5: How To Open Event Viewer {Windows Vista/7}

Event Viewer is an advanced tool that displays detailed information about significant events on your computer. It can be helpful when troubleshooting problems and errors with Windows and other programs.

• Windows Vista – Open Event Viewer
• Windows 7 – Open Event Viewer
• What information appears in event logs (Event Viewer)

Appx6: How To Manually Start the Themes Service {Windows Vista/7}

The Themes service provides user experience theme management. A Theme is a collection of visual elements and sounds for your computer desktop such as: appearance of menus, icons, wallpapers, screen savers, fonts, some computer sounds, mouse pointers, etc.

You must have administrator privileges to gain full functionality in the Services Console.

If you suspect that the Themes service did not start, here is how you manually restart it.

1. Click the Start button , type services.msc at the search box and hit <enter> to open the Services Console.
2. Scroll all the way down, and click on the Themes to open the dialog box.
3. In the General tab make sure the Startup type is set to Automatic. Also in the Service status: click the Start button then press OK. Note that even if the Service status: is displaying “Started”, you could click Stop button and then Start button and then press OK.

Appx7: How To Personalize Your Computer {Windows Vista/7}

If your Windows theme looks unfamiliar to you, or is set back to windows classic theme, and you want to change it, here is what you need to do:

Open Appearance Settings by clicking the Start button, clicking Control Panel, clicking Appearance and Personalization, clicking Personalization, and clicking Theme to open the Theme Settings dialog box. Under Theme, select the theme you want, and then click OK.

Note: if you don´t see your theme as part of the Theme list, make sure that your Themes service has started first. Do Appx6 above, and then come back to this section.

• Windows Vista – Personalizing your computer
• Windows 7 – Personalizing your computer
• Windows Vista – Troubleshoot problems with Windows Aero

Conclusion

I know that my solution to the Failed to Connect to a Windows Service – Windows could not connect to the User Profile Service Error is temporary and deals only with the symptom and not the root cause, but at least this solution works perfectly for me and gets my computer up and running every time and with very little effort. So If you ever have this problem and could not find a permanent fix, try my solution.