Advertisements I just successfully upgraded the drive in our Tivo HD to a WD Green WD10EACS 1TB Hard Drive. It was extremely easy and straight forward to do but, for a first time user, some of the steps in WinMFS did require a little thinking about. I want to post detailed instructions for doing this for any new users that want to upgrade their drives. The thread on internal drive upgrades has over 400 posts so I thought I would simply post the following by itself so it is easy to find for new users. Taking apart the Tivo case is as simple and intuitive as it gets. I am only addressing the hard drive here so, at this time, I am not going to provide instructions for taking apart the case. I used WinMFS. From a big picture perspective, there are two major steps. First, I made a truncated backup of the original drive and stored it on my computer’s hard drive so I have a secure backup of the basic Tivo “kernel”. If necessary, this will allow making a new drive from scratch in the future. Second, I used WinMFS to essentially clone the original hard drive and all programming stored on it to the new 1 TB drive. At one point there will be at least three hard drives connected to the desktop computer being used to make the backup and then the clone. One of these hard drives will be the resident drive on which the Operating System and all data and applications reside. I had a concern of inadvertently overwriting this drive. To protect from this disastrous contingency, I made sure all the hard drives had different capacities so it would be easy to identify which was which when using WinMFS. For example, the computer I used had a 750 MB drive. The Tivo drive is 160 MB and the new drive 1000 MB. A little use of the excellent Human Error Prevention Tool called STAR (Stop – Think – Act – Review) was it all it then took to assure my day would not be ruined. 1. Shut the computer off and connect the original Tivo drive to any spare SATA port. 2. Start the computer and then run WinMFS 3. “File – Select Drive”, verify the correct drive is shown, then “Select”. 4. Once a drive is selected a new drop down menu item appears; “Tools”. 5. “File – Backup – Tivo Drive (Truncated)”. 6. Click on “Select” (adjacent to “1. Select backup file” to name the backup file and select a location to save it. 7. Click on “Start”. It took almost exactly two minutes to save the backup file. The backup file has a .TBK extention was exactly 463,653 KB, relatively speaking, not very big. 8. When done, click “Close”. 9. Shut the computer off. Leave the original Tivo drive connected but now also connect the new drive to another spare SATA port. 10. Start the computer and then run WinMFS 11. “File – Select Drive – Select”. (Select “A Drive Original” 12. “Tools – MFSsupersize – On” (this will toggle on the supersize option). 13. “Tools – MFSCopy”. Verify the “Source Drive” is the original Tivo drive and the “Destination Drive” is the new drive. 14. Click on “Start”. It took almost exactly 40 minutes to complete. 15. When prompted answer “Yes” to “You have extra capacity on your hard drive. Do you want to expand?” 16. Click on “OK” when “MFSadd is done” appears. 17. Shut off computer and reinstall the new hard hard drive in the Tivo. 18. My Tivo booted up very quickly. The first screen was displayed for about two minutes and the second screen (with the it won’t take much longer message) took about four minutes. Everything on the original drive was retained on the new drive. I hope this proves helpful and easy to locate for new users. If anyone sees errors or anything to improve, please make the necessary changes.