Do so much damage that a full install has been required to get it all working again.
About the tech savvy part. Give yourself time to find Dell's XP install notes for your machine and while you do that, backup what you can't lose to more than one place or thing.
Bob
I have a Dell E521 running Windows XP Media Center and for several weeks now I have not been able to install any programs/updates? Not so sure about the updates. I keep getting an error message that the installer cannot be accessed. I have tried setting a restore point to before this all happened but without success. This is due to using PC Pro Cleaner which sets its own restore point each time its used. I updated the installer to 4.5 this morning and tried installing MS Fixit Center again but without success. I tried adding an external hard drive to the computer but it did not install correctly as I cannot access the drive area on the dashboard of the hard drive. I'm not very tech savvy so I am concerned about following suggestions not knowing if I'm doing it correctly. Can you provide the best solution to this problem and how I can resolve this issue quickly. I was also thinking of reinstalling windows but not sure if this should be done and how.

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