Help My Computer Won't Log On To My Profile

  This is a common problem with viruses today. You were on your computer the night before and everything was okay. You start your computer the next day and when you try to log on to your profile it kicks you back out. The user profile failed to log on is the typical message that you may receive. So what are you going to do at this point. On almost every computer that this is happening I have found it to be a virus. There is also that slim chance that a power interruption or brownout may have occurred.  This can cause corruption to the registry, damage to the motherboard, other components in the system or corruption to the software. Well you have a few different choices. The first obvious thing to determine is did you in fact have a power failure. If you did I would inspect your motherboard for any signs of damage such as popped leaking capacitors.

Bad Leaking Capacitors

  The next step is could it be a virus, malware or a piece of unwanted software that got into the system. First try booting to the safe mode with networking. I would also download some virus cleaning tools off the internet. Create a folder for example on a USB Flash Drive and copy all these virus cleaning programs to it.  I would suggest combofix ( unless it is windows 8.1), Free Malwarebytes, Spybot 2.4 and tdsskiller.exe from kaspersky's website. Copy them over to the desktop and run then in this order Tdsskiller, Combofix, Free Malwarebytes( make sure to update it) and Spybot 2.4 Portable. Reboot the computer when instructed by the program. Reboot especially after running Combofix because it run Rkill to stop various items in the system. There are other virus programs that you can download and run such as Super AntiSpyware Portable and Eset Online Scanner.
  If you can not enter the safe mode either, then try going to a command prompt after pressing the F8 key on your keyboard. You will need to know a little about dos to select the folder where you save these programs. You can run each program rebooting when necessary. If the computer does boot properly update your virus software and run a full scan on the system. This may or may not solve the problem with the log on. If you can get into a different administrator account you could create another profile and move your data to it, then delete the old profile. Just remember to run the Virus Cleaning Programs on all profiles to remove any infections.
  If you can not get into the system by any of the above virus cleaning methods, then there is a registry fix for this problem. This probably the best link to go to from Microsoft to repair the users log on profile http://support.microsoft.com/kb/947215 . Here is another link to a website with instructions on how to repair the log on profile http://www.pcadvisor.co.uk/how-to/windows/3495216/how-fix-corrupt-user-profile-in-windows-7/ . Just copy and paste the web address in to your address bar and press enter. The second website is the same information as the first, but will have ads. Follow all the instructions that they give you. Reboot the computer and see if you can now log on. If you can log on properly be sure to run all the virus cleaning programs. Make sure that you have a good up to date Virus Cleaning Program  installed on you computer. I have seen too many times where the virus program has expired.
  I hope this information is helpful. Also if you are not comfortable with doing this check your local computer store for whatever virus cleaning they may provide. Just check out any reviews on the computer store for any bad experiences. It does happen from time to time.
  Thank You for reading.