AFTER THE MOVE
Switching from Windows to Mac, the differences nobody warns you about
Your files came across fine. What breaks afterward is the defaults the Mac set during setup, and nothing on screen will tell you they are wrong.
By the Savvoo desk · · 16 min read
The transfer worked. Your documents came across, your photos are there, your email is signed in, and the Mac has been on your desk for a week. That part went better than you expected.
Then small things start going wrong. A contact you know you have does not turn up when you search for it. Someone sends you an invitation and neither of you knows it never arrived. Photos from your phone stop appearing where you thought they lived, and none of it throws an error or asks you a question. It quietly does not work, and you cannot tell whether the Mac is broken or you are using it wrong.
You are not using it wrong, and it is not broken. During setup the Mac made a series of sensible decisions on your behalf, and every one of them assumed you were an Apple person. If you are, they are the right decisions. If your contacts live in Google and your calendar runs through Outlook, they are quietly the wrong ones, and nothing on screen will tell you so.
This guide is about those decisions and how to find them. It is not about moving your files, which is a different job and one we cover separately. If you have not set the Mac up yet, start with our MacBook setup guide and come back.
The short version
The transfer was the easy part. What breaks afterward is the defaults, not your files.
New contacts file into Apple, not Google, until you change the default inside Contacts.
Invitations that never arrive are usually a setting on the sender's device, not yours.
The iCloud storage message offers delete or pay. Moving the backup is the option it leaves out.
In our experience, Google Photos on an iPhone waits until you open the app.
Before any of that, a word about the small stuff. Copy and paste move one key over, the red button does not close anything, and Control, Alt, Delete has a different name here. None of it needs a guide. Your hands sort it out in about three days and you stop noticing it. The rest of this guide is about what does not fix itself.
Contacts: they went to Apple, not Google
I added a contact on the Mac. A while later I was out, needed it on my phone, and it was not there. No error, no sync warning, nothing at any point suggesting something had gone wrong. It had simply never arrived.
I had a hunch, so I signed into iCloud in the phone's browser, which is not a fast process when you are not holding an Apple device, searched, and there it was. Filed safely in the one place I had no practical way to reach.
Nothing had failed. The Contacts app on a Mac puts new entries into the Apple account by default, because that is the account it was set up with. My contacts live in Google. The Mac never asked which I wanted and never flagged a mismatch, because as far as it was concerned there was no mismatch. It did exactly what it was configured to do.
Notice where the failure surfaced. Not at the desk, where everything looked correct, but on a phone, in a car park, with no laptop. That is the shape of all of these. The default works perfectly on the machine that made it and falls over everywhere else.
The fix is in two places, and most people only find the first. Connect the account in System Settings, under Internet Accounts. That gets it onto the Mac. Then open Contacts, go to the Contacts menu at the top of the screen and choose Settings. Under Accounts, switch on your Google or Microsoft account. You can also add and remove accounts from this screen, so if you skipped the System Settings step you can do it here instead.
Then move to General, and at the bottom set the Default Account. That is the one that decides where new contacts are filed from now on, and it is the setting nobody finds. Changing it does nothing to the contacts you already have. It only changes where the next one goes.
One thing to decide while you are there. If you leave iCloud switched on alongside Google, everything syncs to both, and people you have in both places will show up twice. Switching iCloud off in that same Accounts tab gives you one clean list, at the cost of iCloud no longer holding your contacts at all. Contacts does not offer a way to sync both and show one. The choice is two copies and two entries, or one of each. Which you want depends on whether you think of iCloud as a second backup or as clutter. There is no wrong answer, but it is worth choosing on purpose rather than discovering it.
Then check the same setting on your phone, because it exists at both ends and fixing the Mac does not fix the phone.
Calendar: the invitations that never arrived
This one ran for years, and it ran for years because I kept working around it.
My wife books things. Flights, the vet, a house viewing, the dog's grooming. She sends the invitation from Apple Calendar and I get nothing. The first time I registered it was a set of flight bookings. Nothing came through, I was busy, and I typed the details into my own calendar instead. Apparently solved.
That is what kept it going. Every failure cost me thirty seconds to patch, so it never became annoying enough to sit down with, and it quietly got worse for another year.
Eventually I had a hunch it was the same thing as the contacts, so I looked at her device instead of mine. Her Google account was not the default. Everything she created was going into an Apple account, exactly as before. I changed the default and 67 invitations arrived at once. A year of appointments landing in a single afternoon.
Take the useful part from that: the setting that was wrong was not on my computer. Nothing I could have done on the Mac would have fixed it. When invitations are not reaching you, the sending side is where to look, and it is the last place anyone looks because it is not their machine.
If you are the one sending, here is where it lives. Open Calendar, go to the Calendar menu at the top of the screen and choose Settings. It opens on General, with the other tabs across the top. At the bottom of General is Default Calendar. It names a calendar rather than an account, so what you see there will be something belonging to iCloud or belonging to Google, and whichever it is, that is where every event you create goes. If it points at iCloud while the people you invite live in Google or Outlook, that is your answer. Change it and new invitations start arriving. It does nothing to events you have already made.
A note on versions. Everything here is written against macOS Tahoe, which is the version shipping as we publish this. Apple puts out a new one every September and menus shift a little each time. If a route here does not match what is on your screen, that is usually why, and the menu bar along the top is where to go looking.
There is a heavier version of this fix, and it is worth knowing about but not worth reaching for first. In the same Settings window, under Accounts, you can switch the iCloud account off inside Calendar entirely. Be careful with it. Switching that account off removes its events from your calendar view, so a year of appointments vanishes from the screen in one click. They are hidden rather than deleted, and switching the account back on brings them straight back, but it is an alarming few seconds if you were not expecting it. Change the default first, live with it for a week, and only reach for this if you want iCloud out of Calendar for good.
If you are the one not receiving, the polite version of this conversation is asking the sender to check the same thing.
An aside, because this is roughly why we are building what we are building. Nobody mentions any of this at the point of sale. Our matching tool is not open yet, but when it is, it will ask a few questions about how you actually use a computer, find the refurbished machine that suits that, and say the awkward parts out loud rather than leaving you to meet them in a car park. Leave your email and we will tell you when it opens. That is the only thing we will use it for.
Photos: the default that sends you a bill
This one does warn you. Loudly, and more than once.
When your iCloud storage fills up you get told about it. The phone stops backing up, photos stop uploading, and a message appears asking you to delete things or buy more space. It is clear and it is not hiding anything.
What it does not mention is the third option. The choice on offer is delete or pay, because those are the two things Apple can do for you. Nothing in that message suggests your photo history might already live somewhere else, or that moving the backup is a thing you are allowed to do. The assumption is not implied here. It is written into the dialog box.
That was us. Years of photos in Google, organized by place and event and person, and an iCloud library with none of that history that kept asking for more money. My wife works in fashion and shoots at volume, so she hit the ceiling constantly, but you do not need to shoot professionally for this to bite. The free iCloud allowance is small enough that an ordinary camera roll clears it inside a year.
We moved the backup rather than the photos. Install Google Photos on the phone, turn backup on, and choose whether to upload at full resolution or the compressed setting, which decides how fast you fill your allowance. Let it finish its first upload before you change anything else.
Then turn off iCloud photo syncing specifically. Not iCloud altogether, which would take your contacts and calendar with it. On the phone that is Settings, then your name at the top, then iCloud, then Saved to iCloud, then Photos. The toggle is the one labeled Sync this iPhone, or Sync this iPad if that is what you are holding. The step people walk past is Saved to iCloud, an extra screen sitting between iCloud and Photos that nothing prepares you for.
When you switch it off, a warning appears telling you the photos will be removed from the device, and it offers three choices: Remove from iPhone, Download Photos & Videos, or Cancel. Choose Download Photos & Videos, and wait for it to finish. Remove from iPhone is only safe if you are certain every photo is already somewhere else, which is exactly why Google Photos goes first.
One more thing while you are in there. If you want to know what is actually filling your iCloud, tap the storage bar at the top of the iCloud screen. It breaks the total down by app. The message that told you that you were full never tells you what filled you.
Be honest about what that solves. You are not escaping paying for storage, you are paying less for it. Google's allowance is bigger and generally cheaper than Apple's, but it is still one allowance shared with Gmail and Drive rather than a separate one set aside for photos, and if you shoot at volume you will meet the ceiling there too. What you get is a bigger runway and your photo history in one place. Not a free ride.
That was the loud failure. This next one gives you nothing at all. OneDrive backs up in the background whether or not you open it. Google Photos on an iPhone has never behaved that way for us. Across two iPhones and four iPads it waits until you open the app, and if you go a couple of weeks without opening it there are hundreds of photos sitting in a queue while you assume they are safely away. Once it starts it moves quickly. It just does not start on its own. Opening it deliberately once a week solves it.
And what you give up. Sharing gets harder, and this is the honest cost. Sharing photos from an iPhone assumes they are in iCloud. If yours are not, the phone either uploads them first or the share does not work, and your way out is sharing from Google Photos instead, which sends the other person a link to Google rather than pictures arriving in their own app. If everyone around you is on an iPhone, that is a recurring irritation rather than a one-off. Worth knowing before you switch rather than after.
On cost, compare the current tiers yourself rather than trusting a figure in an article, including this one. They move.
The rule underneath all three
Three apps, three failures, one cause. There are more of these than the three in this guide, so the shape is worth more to you than the instances.
Start with the thing that makes all of them invisible. Windows keeps nearly everything in one place: you open Settings and almost every switch that matters is in there somewhere. A Mac splits it in two. Some settings live in System Settings. The rest live inside the app they belong to, and nothing in System Settings tells you the others exist. The setting that stopped my wife's invitations was not in System Settings. It was inside the Calendar app. So if you go looking where Windows taught you to look, you find the account sitting there, signed in, apparently fine, and conclude nothing is wrong. You checked the only place you knew to check.
That is also why nobody warns you. Ask a confident Mac user and there is a fair chance they have never opened these settings either. Inside Apple the defaults are correct and nothing breaks, so the setting stays invisible. It surfaces only for people with one foot outside, which is you.
Adding your Google or Microsoft account to a Mac does less than it sounds like. It connects the account and switches on the parts Apple assumes you want. What it does not do is change which account new things get filed into, and it does not switch off the Apple version already running underneath. Both stay exactly as the setup assistant left them. Two accounts live in the same app, one of them quietly collecting everything you create, and nothing on screen telling you which.
So when you connect an account, three questions, in this order.
What is it syncing? Adding an account switches some things on and leaves others off. Look rather than assume. Apple's own warning is worth carrying with you: turning a feature off later can remove what it put in the app, so change these deliberately rather than while you are poking around.
Which account is the default? This is the one that bites. On the Mac it is a separate setting in a separate place, and it sits inside each app rather than in one central list. In Contacts it is Default Account, at the bottom of the General tab. In Calendar it is Default Calendar, in the same position. Two different names for the same idea, and neither of them anywhere near the screen where you connected the account.
The phone has the same settings and hides them the opposite way round. On a Mac you go into the app. On an iPhone you go back out to the main Settings app: Settings, then Apps, then Calendar, and Default Calendar is the one you want. Contacts works the same way, at Settings, then Apps, then Contacts, then Default Account.
So the habit you just learned on the Mac is the wrong habit on the phone, and the names stay the same in both places. Whether the setting is called Default Calendar or Default Account depends on which app you are in, not which device you are holding.
Is the Apple version still running underneath? Usually, and usually that is fine. It stops being fine when both are switched on and you only ever look at one, which is how something gets filed correctly in a place you never open.
Then do the same at the other end. All of these settings exist on your phone too, and fixing the Mac does not fix the phone. And if something you send is not arriving, the setting is on the device doing the sending, which may not be yours at all.
If you are still choosing
If you are the person everyone in your family asks about laptops, this is the guide to send them before they switch, not after. And when our matching tool opens it will do the asking for you: a few questions, then the machine that suits how that person actually works, not the one with the best specifications. Leave your email and we will let you know when it is open, and that is the only thing we will use it for.
It will be free to use. When you buy through one of our partners we will earn a finder's fee from the retailer, at no cost to you, and it will not change which machines we surface.
If you are choosing right now rather than waiting, our pick for everyday use is the place to start.
One thing to check before you buy, because it is invisible in a listing. Apple's next version of macOS does not run on Intel Macs at all, only on the M-series chips. A 2019 or 2020 MacBook Pro can look like a lot of machine for the money and still be one that will never get another version of macOS. It is not dead, and Apple keeps issuing security updates for a few years after a machine's last supported release, but you are buying a hard end date. Check whether a listing says Intel or M1 and later before the price convinces you.
Common questions
Do I have to use iCloud at all?
No. You can add a Google or Microsoft account and use that for mail, contacts and calendars instead. What you cannot do is switch iCloud off casually, because it is doing several jobs at once and turning it off wholesale takes your contacts and calendar with it. Turn off the parts you are replacing, one at a time, inside the app each one belongs to.
Why do some of my contacts appear twice?
Because both accounts are switched on in Contacts and both hold that person. If you want one clean list, switch iCloud off in Contacts settings, under Accounts. Be clear about the trade: that stops iCloud holding your contacts, so Google or Microsoft becomes the only copy. If you would rather keep both as a safety net, the duplicates are the price.
If I move my photos to Google, do they disappear from my iPhone?
Only if you tell them to. When you turn iCloud photo syncing off you are offered three choices, and one of them removes the photos from the device. Choose Download Photos & Videos instead, and let it finish before you do anything else.
I fixed it on my Mac. Why is my phone still wrong?
Because these settings exist separately on every device. The Mac and the phone each decide where new items go, and neither tells the other. Check the same settings on the phone.
Is this a problem if I am moving to a Windows PC or a Chromebook instead?
No. This is an Apple-account problem rather than a switching problem. It only happens because a Mac arrives already signed into an ecosystem and quietly assumes you live in it.
Related
Sources
Apple, adding and managing Internet Accounts on a Mac, including the warning that turning a feature off can remove data the account put in the app. https://support.apple.com/guide/mac-help/mh35705/mac Checked 21 August 2026.
Apple, macOS Golden Gate system requirements, Apple silicon only. Apple's own compatibility page could not be obtained, so this is MacRumors reporting Apple's announcement and published compatibility list. https://www.macrumors.com/2026/08/20/macos-golden-gate-marks-the-end-of-an-era/ Checked 21 August 2026.
Apple, security updates for machines past their last supported version of macOS. Same sourcing as above, reported rather than taken from Apple directly. https://www.macrumors.com/2026/08/20/macos-golden-gate-marks-the-end-of-an-era/ Checked 21 August 2026.
Google, storage shared across Gmail, Drive and Photos, and the change of 1 June 2021 that counts new uploads against the same allowance. https://blog.google/products-and-platforms/products/photos/storage-changes/ Checked 21 August 2026.