When requesting assistance, please provide the complete model name and product number of the HP computer in question. HP/Compaq makes thousands of models of computers. Without this information it may be difficult or impossible to assist you in resolving your issue.
The above requested information can be found on the bottom of your computer, inside the battery compartment, or on the BIOS setup screen. Please DO NOT include your serial number. Enter the model/product information into HP's Online Consumer Support page and post it here for our review.
Running "defrag" on the HP Recovery partition shouldn't cause any issues. I would suggest that you create your personal HP Recovery Media, if you haven't already done so.
If you have any further questions, please don't hesitate to ask.
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