Keeping a document synk on two computers

Hi, I have two identical HP computers and would like to keep ONE document synk on both computers.  So if I make a change on one, it automatically changes the other.  What is the best way to do that.  I have my system at home setup as a network (wifi).  The computers are HP ENVY 15t.
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Craig BeckCommented:
Dropbox, OneDrive, Google Drive, Box (to name a few) - any of those will do that.  Just save the document in the Sync folder (whatever you set it to be) and it will sync to the cloud, then the other computer will sync the change.
JohnBusiness Consultant (Owner)Commented:
Dropbox works and I use it. However the volume of files I have exceeds (by a lot) what I want to do with Dropbox. I have a setup in my home office with two computers and I use Sync Back Pro to keep 50 GB of files in sync. It is not automatic. It can be scheduled but I just run profiles frequently.

When I away for a week or so, as is the case now, I just sync it upon return.
Natty GregIn Theory (IT)Commented:
what said above or use brief case and share it over network, so the update is synced across
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camtzAuthor Commented:
What is brief case?  Does that come with Windows?
JohnBusiness Consultant (Owner)Commented:
Briefcase more or less died with XP. It came with Vista but did not work. That is why I moved to Sync Back Pro. It is vastly more robust and reliable and works with greater quantities of data.
Craig BeckCommented:
SyncBack Pro isn't free and it's not automatic.

For ONE file, just use one of the free, automatic solutions that I suggested.  They will all have ample storage space to suit your need.
camtzAuthor Commented:
craigbeck, I think I'll use Dropbox.  Question; can I use the same ID and password on both computers?  If I use different ID and password, how will Dropbox know which two computers to sync up?  I'm just not clear about setting it up.  Would appreciate your help with this.
Craig BeckCommented:
Yes you can use the same login on both machines.  The client will just connect to the cloud account to sync any new, updated or deleted docs.

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JohnBusiness Consultant (Owner)Commented:
I have Dropbox running on my Windows 7 machine with one login, on my Windows 8.1 with a different login, and on my iPhone. All the files stay in sync at all times. If you want to use one log in, you can, but you can also use different log ins as well. I do this.
Craig BeckCommented:
That's right, John.  It's a bit more of a faff to get the multiple login approach working though as you have to share documents and configure what you want to share/sync.

My advice would be to just use one login to keep it simple :-)
JohnBusiness Consultant (Owner)Commented:
Dropbox does not care about logins on my machines. Sharing folders does, but Dropbox does not.
Craig BeckCommented:
That's what I was saying, John.  To use Dropbox with multiple accounts you need to get the accounts to share the data contained within the folders, or it doesn't know how to get the files between multiple accounts.  If it did it would be a massive security hole.  I could just log in to Dropbox on your PC with my login and get all of your synced data.

To use multiple accounts cross-machine you need to share.
Craig BeckCommented:
JohnBusiness Consultant (Owner)Commented:
If I change a file on my laptop at a client on a client network, it will appear on my iPhone within minutes, and when I get to my home office, the file will be sync'd there as well. There is no connection and no security hole. Perhaps I set it up differently than you.
Craig BeckCommented:
Your accounts must be linked somehow.  That somehow is by configuring shared folders.  You will be syncing shared folders - that's all.  Once it's done it's done until you break the share.

Think about it.  How does one login know about the other login?  If logins just knew about your other accounts that would potentially enable other users to see other people's files.

See the "For our advanced users" bit...

I've actually got 3 dropbox accounts.  I can't get them to see eachother without sharing.  Perhaps you can share how you did it, John?  Maybe you have DropBox Pro?
JohnBusiness Consultant (Owner)Commented:
The Dropbox files are linked via the Dropbox cloud, not my machines. They are nowhere near each other and not connected.

I use Dropbox Regular although I am considering business.

Account linking is done in Dropbox Preferences, Account and it links via my Cloud Dropbox identified by my email address.
Craig BeckCommented:
Forgive me, John.  I understand how DropBox links machines.  I could install DropBox on 5 machines on different continents and use the same login to get them all to sync the same files/folders.  What I want to know is how do you see the computer you linked to one DropBox account while you're logged in to DropBox using the other account, like you apparently do?

I can see machines that I linked to DropBox using one particular login (email address) but I can't see the other machines using different email addresses.  DropBox in the cloud only shows me machines that I've added using the same login - not machines that have different logins.  For that I have to login to DropBox in the cloud using each separate email address.

DropBox Account Link
You must be logging into Windows using different email addresses, but logging into DropBox using the same email address, or sharing between DropBox accounts.
JohnBusiness Consultant (Owner)Commented:
I never use email address to log into a computer, just the Windows log in. Of course, my email address is constant (the one I always use) but my machines do not use this.

Now, when I set Dropbox up, it may have asked me and I do not recall that. But the email setup for Dropbox is the same on my Laptop here and my phone. I will not be back to the home office for a bit to check.
Craig BeckCommented:
But the email setup for Dropbox is the same on my Laptop here and my phone.
That's exactly what I'm getting at :-)

The email address that you use to access DropBox is what links the machines.  You must log in to DropBox with the same email address on each machine that you want to sync between, unless you use the sharing feature to give another user access to your shared folder/files.
camtzAuthor Commented:
It worked out great.  Now both computers have the same information.
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