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- HP Community
- Desktops
- Desktop Boot and Lockup
- converting a MBR drive to GPT, Windows-7 Pro

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03-28-2020 08:18 AM
I need to do this conversion without data loss.
I have attached a Snip of the System.
Does anyone know of a 100% sure procedure?
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03-28-2020 09:33 AM
Sorry, but while various utilities are sold that claim to do this, the sorry fact of the matter (if you read their fine print) is that no one guarantees 100% success rate without any data loss.
In fact, if you read the Microsoft articles about this, they tell you the first thing to do is copy off the contents of all the partitions (they call them "drives") to external storage before you start the conversion.
I am a volunteer and I do not work for, nor represent, HP
03-29-2020 08:35 AM
None one provides a percentage accuracy on their conversion apps -- because every case is different and if they said, for example that it was 90%, and you ran it and for you, it was only 85%, would you then be entitled to a refund?
This is way too much grief for an app vendor to deal with, so all they say is that you use at it your own risk.
IF you Google the process, you will find some instructions written by MS for doing such conversions -- but again, there are NO guarantees of any success rate.
I am a volunteer and I do not work for, nor represent, HP
03-29-2020 03:45 PM
You keep asking pretty much the same question over and over, and I've tried to tell you, but I guess I have not phrased it properly -- that EVERY CASE IS DIFFERENT.
It does not matter if someone else has done it without issue; what matters is that you're risking data loss if you do it.
So, even if someone else had the same identical model PC, they would not have the same identical DATA as yours, so their success would be no guarantee of your success.
IF you desperately need to do this, then copy the stuff you can not afford to lost to a large USB stick and do the conversion. That way, if you lose personal data, at least you have a backup. If you lose the Windows OS, you would have to reinstall it anyway.
I am a volunteer and I do not work for, nor represent, HP