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Confusion about Snapshot file dates

Posted: 27. Jun 2022, 02:31
by descott12
Hello all,
I am running VBox 6.1.34 on a Win10 Pro host. I have an XP VM and I took a snapshot just to try it out on May 24. I really don't need the snapshot and I want to delete it BUT the timestamp on the snapshot .hdd file in C:\Users\des\VirtualBox VMs\WinXP\Snapshots is constantly updated with today/now and the original virtual machine .hdd file has the May 24 date. So it seems all new changes are being applied to the snapshot file and not the live vm file. Or am I not understanding how this works?

Thanks in advance. Otherwise my switch from Parallels on a Mac to VBox on Window has been a really painless process.
Cheers

Re: Confusion about Snapshot file dates

Posted: 27. Jun 2022, 05:00
by rfm
As explained in the manual https://www.virtualbox.org/manual/UserM ... s-contents when a snapshot is taken, the current state is frozen and a delta disk is created to hold subsequent changes. So it's the delta disk that will be changing.

Re: Confusion about Snapshot file dates

Posted: 27. Jun 2022, 10:29
by mpack
VirtualBox support for ".hdd" format is very limited so, after getting rid of that snapshot, you should convert the .hdd to .vdi ASAP.

Re: Confusion about Snapshot file dates

Posted: 27. Jun 2022, 15:36
by descott12
Thanks. So how do I get rid of the snapshot? Simply delete it and it will merge all the changes back into the main VM file.

Re: Confusion about Snapshot file dates

Posted: 27. Jun 2022, 18:24
by scottgus1
descott12 wrote: So how do I get rid of the snapshot?
Always make a backup when adjusting snapshots. If the host OS or hardware has a glitch, then the VM could be hosed.

Then select the snapshot in the VM's snapshot list and click the Delete toolbar button. The snapshot will merge back into the main disk.

Re: Confusion about Snapshot file dates

Posted: 28. Jun 2022, 01:59
by descott12
It worked. Thanks for the guidance. I am continually impressed by Virtual Box.