OK sorry for this very long post but I wanted to give all relevant information to hopefully get some answers.
Ok this problem seems to be the opposite of the problem dealt with in this old thread.
viewtopic.php?f=18&t=2028I told you about hubby's failed laptop, it was used solely for a clients accounts and he'd had it a few years.
Last week they told him to get another one, he didn't want anything fancy so we just got a basic one that had a large HD.
I set it up under his Microsoft account and installed Thunderbird as his email program, I use that, he was happy with it as he only has 2 email accounts, Hotmail and BT Internet, he wouldn't want a Microsoft account if he could get away with it.
Installed the Payroll system he uses, Malwarebytes Premium and the machine is fully up to date, running Windows 10 2004 and Edge browser plus Defender. Microsoft 365 is under my name but is shared with him as he needs Excel, which is where the problem is.
He has a 6 foot long trestle table as his workspace, at one end is his desktop pc which is connected to the router via Ethernet cable that goes through the wall into the next room. In the middle sits his printer which he has set up to only connect via USB cable so he can take the cable out from his desktop and plug into the laptop which connects via wireless for Internet and is on the other side of the printer.
Excel is pinned to the taskbar, the problem is that whenever he works on Excel on his desktop it also shows on his laptop. He doesn’t want that to happen as the laptop is just for his clients accounts so he doesn’t want it to show the record he has to keep of his blood sugars and if he tries to delete it on the laptop it deletes it on the desktop, plus the laptop is showing other things he has in Excel on the desktop and he wants it to stop.
I’ve made the laptop undiscoverable in the network so it can’t be seen by the other machines in the house and thought I’d stopped any sharing to it but it is still showing this morning even though after making the changes it has been completely shut down and unplugged and rebooted fresh this morning.
Anyone got any simple ideas for me to try next so it stops happening.
Actually, if he typically opens Explorer to open an existing file the shortcut to file idea saves a single step, so he's doing fine. I typically do the same, but a few most often used files are shortcuts on my desktop. I never use the file history in the Office applications, hence the reason I had no clue that they were synchronizing to all of my systems!