This was really crazy. I have a hdd where I keep all my keep many things.
So after the clean install, I go to my D: drive and it was wiped clean and wants to
be formatted as UDF 201
First time I heard anything about this file system.
Comments ?
Problems with drives becoming inaccessible after installing or upgrading Win 10 have been quite commonly reported. UDF is weird- that's e.g. DVDs. Are you sure you're not somehow seeing your DVD drive?
Feel free to yell at MS. They have a range of problems they are supposedly fixing, widely reported.
Hope you have a backup or are already wise enough to be using disk imaging routinely.
What make of disk is it? Such problems appear to be related to certain manufacturers' disks. (Seagate, WD). I use Toshiba's, and haven't noted a report about those (yet).
You could try Minitool Partition Wizard, or recovery software.
Partition disappears in Windows 10 Anniversary Update
Windows 10 Anniversary update problems, not recognizing external hdd - Windows 10 Forums
Unable to access external hard drive - Microsoft Community
I do keep a C: image and backup D: which was the one that failed (?). I move it to another sata port and it can be seen. This time it
formatted as ntfs. Windows does not see it as drive D: so I used E: this time. A big burp with Windows and mobo/hdd.
I will be needing a beer !!
Are you sure it aint just the AU Disappearing Partitions issue ?
Windows 10 Anniversary Update Might Hide Partitions After Install - Windows 10 Forums
Hi, depends how. For example, if it deleted the partition you can use a partition manager (3rd party) which can recover partitions. Or even freeware- like Diskdrill. There are many such programs.
There will be no AU for me until the AU Disappearing Partitions bug is fixed!
The partition was on a different drive and I did not try to restore, forgot about that ! I have been tracing this dde server problem since the last "upgrade". I have never had major upgrade problems from any Windows version since 3.1, I think was the earliest for me. I had the dde server error
on one machine the last upgrade and on all three with the AU upgrade. I am too old to learn Linux, but Mint is starting to look good.
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