Generally error 2000-0142 indicates a failed hard drive.
If the hard drive has not failed already, it may fail shortly. Luckily, since it is working fine right now, I would request you to back up all important data from your computer to an external storage device to avoid losing data.
Please feel free to contact us in case of further queries. We would be happy to help.
Thanks and regards, Babita S #iworkforDell
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