How To's & GuidesHow to fix Windows Home Server when it cannot...

How to fix Windows Home Server when it cannot access the computer’s hard drive


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This computer is not online or Windows Home Server cannot access the computer’s hard drive. Please make sure the computer is powered on and connected to your home network.


I just got this error the other day, so I did some research. I may have caused the error, as I was messing with removing a disk, installing a disk, changing the SATA ports, formatting, partitioning, etc… I probably confused WHS.

I worked around the problem and now I can backup again. This deletes all prior backups on the server for this computer – this should not be a problem, unless your computer crashes during this process. I suggest that you have a copy of your important files on the WHS anyway.

Here’s what I did to fix it:

1. Uninstall WHS Connector from the computer with the problem.

2. Remove PC from Computers & Backup (As you can see from this screen, I’ve got XP, Vista Home & Business and Windows 7 happy together.)


3. Cleanup backup database using the “cleanup now” button in Settings, Backup


4. Reinstall Connector on the computer

5. Setup backup in WHS for this computer (optional)

6. Let WHS backup the computer

Michael Peele
Michael Peelehttp://
Michael Peele has been an IT manager for more than 11 years, with a current day-job at Georgetown University, in Washington, DC. Michael is a self-proclaimed "advanced novice" or "power user", and feels that he is the target audience for Windows Home Server. He beta-tested Windows 95, and is a general early-adopter (not much of a beta-tester, though), he purchased Vista 64-bit early on. He has a wide range of experience in technology management, and works as an independent consultant, periodically, primarily for IT Management and IT Security services. He has presented at numerous conferences and written several articles (primarily university-related). Many years ago, he worked on a team writing a hint book for id's Quake. Michael has a number of qualifications, including a MS in Technology Management, BS in Electrical Engineering, and multiple certifications, such as the Project Management Professional (PMP), is Board Certified in Security Management (CPP), and is considering other IT certifications, such as A+, Network+, Security+, SSCP/CISSP, and some Microsoft certifications, but hasn't had reason to sit for the tests.


  1. Extremely helpful information. The Home Server bandwagon is getting bigger all the time. This was one of those pesky problems. My customers have tried it and it works.


    Rob – Deltec Systems

    Build a Home Server

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