Can't update my Linux OS (Kubuntu)

Hello to all,

I am new on Linux and want to get acquainted with this new universe, I chose the  Kubuntu distribution, version 11.10.
I downloaded it and I try to install on a PC Dell Dimension E520 (Intel Core 2 6300, 1.86 GHZ, 3 G of memory).
The installation (from an USB key, on a partition occupying a complete disk of 250 G) was normally made but during the first restart, the system gives a message indicating that updates are available.
When I launch the installation of these updates the updater program begins the processing and blocks on the stage " Preparation of the configuration of kde-window-manager " at exactly 43 % of the process.
After more than three hours of wait, nothing changes on the screen after this period. The only way which I found to end the program was to cut the power supply of the computer.

When I restart, I have no more access to the update management programs because every essay gives the message " impossible to obtain the lock. It seems that another application uses the system of package at the moment. You have to close all other administrators of package before being able to install or deleting some package. " (translation from french message).

In the system there does not seem to have other active program. The problem occurs with the 32 bits version 32 bits and the 64 bits version! I would appreciate your help so that I can pursue my learning.

Thanks in advance.

R.G.
samlioniAsked:
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tobywestonCommented:
Seems the lock has not been cleared on the apt process.

Run the following command in the terminal window and then try the update manager again:

sudo fuser -cuk /var/lib/dpkg/lock; sudo rm -f /var/lib/dpkg/lock
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samlioniAuthor Commented:
Thanks a lot.  The instruction doesn't solve all the problem but after the execution, I try to apply upgrade and I was able to pass over all the upgrades.

Thanks a lot again.
R.G.
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