I run Windows 7 and I have for years and I guess I always will......even stopped Microsoft from installing Windows 10 on my PC's with Faronics Deep Freeze.
Windows 7 runs with MBI format and Windows 10 runs with GPI which is a completely new format and generally incompatible with MBI, so that, with time, Windows 7 software which runs on both, won't run on Windows 10 anymore - you will probably have to pay for new software which is dedicated to Windows 10.
The biggest problem I see with Microsoft is that they tried to switch everyone to Windows 10, underhandedly and without anyone having any say in the matter. You turned on your PC next day and you had Windows 10 on it and some programs were compatible and some were not - tough titty.
Why would Microsoft want everyone running Windows 10 anyway?
Well, first off, no one really knows what Windows 10 does, but you can be sure that a program which is forced on you, irrespective of its being free, is not there for your health and welfare, so much as Microsoft becoming big brother by default and sharing your internet connection and whatever you do online, with you - probably to be sold off to companies who want to know about internet surfing trends and possibly the Police about what (some) people do on the Dark Net and any other deemed illegal sites, or what the conventions of your country see as socially unacceptable activities to them, which need to be addressed and where applicable, punishments meted out.
Remember, what is legal now, only takes a signature by a politician to become illegal and surfing habits which were undercover, pretty much before Windows 10, could easily become legal actions, because of what Windows 10 reports back to Microsoft, from when Windows 10 was installed on your PC's and has been recorded forever in a digital format against your PC's identity number, where every PC has its own identity which is written into the OS when it is installed, so you can't take the hard drive from one PC and plug it into another and run it - take it from me, nothing runs at all - so this is a digital procedure pretty much along the lines of human DNA being different for each of us, but used now to solve crimes which previously were undetectable, by identity, whether human or PC and the digital footprint of that PC and wherever you send it on the internet and what you do there.
I stopped using Antivirus programs some years ago, because I found the ones I installed, started taking control of the internet and where I was allowed to go. They automatically deleted some of the software I downloaded without my having any input into that. Since I have always relied on Deep Freeze since the get go, I am protected from all antiviruses and anything else, simply by downloading and unpacking in "D" where my OS and supporting software is in "C" and just by rebooting my computer, I reset it back to its clean state, after I locked it with Deep Freeze. Everything accessing or secretly downloaded to "C" is wiped off.
Ok, I've had my winge. What to do about it?
When you installed Windows 10, your computers should have set up a System Restore point on each of your computers from the moment Windows 10 was installed, and for each peice of software which you installed on them, so each installation represents a potential System Restore point, which you can set your PC back to.
If you did not set up System Restore, then your only options might be to reinstall Windows 10 again, in the hope that NAS is restored, or change the format back to MBI and delete Windiows 10 and install Windows 7 on your computers, while you still can, however, backup all of your files which you don't want to lose, so if the unexpected happens, you only have PC problems and you have not lost the files you can't replace.
Move your cursor down to the left hand side, at start and hover it over the blank bar which you can see there and type in system restore and reset your Windows 10 computers back to the time when you had NAS access and after the restore, see if NAS is back.
If it is, remove those computers from the internet for the time being. If the system restore did not fix the problem, try an earlier system restore and keep going until you get NAS (whatever that is) back again.
With a Windows 7 computer, go onllne and download 3 programs. 1)Faronics Deep Freeze. 2)DWS.exe (which is free) 3) Emergency Kit Scanner [antivirus] (which is free). you can find them through Google or DuckDuckgo, which unlike Google, does not keep a record of where you go online - I use Mozilla Firefox linked to DuckDuckgo as my interent browser. Opera with its VPN, does not conceal your identity or location from the PC's you connect to on the internet, even though it is advertised that they do. Huh.
Partition your hard drives (if you have not done this already) so that you have "C" and "D" partitions on your hard drives. You can install a software program to do this, or you can do it via the "format" function within your Windows Operating System itself.
The partitioning program will scoop all of your software and supporting files into a partition it will call "C" and free up space which it will leave in a folder called "D", so you won't lose anything, but you can always do a files backup, just to be sure.
Download everything from the internet, in future, into a yellow folder in "D" and keep your OS and supporting software in "C". If you right click your mouse on your desktop, while you are in "D", you are given "New" and select "Folder" and while the folder is back hi-lighted, type in the name for it (downloads - for example).
Setup your browsers to download to "D" and all downloads, including your download program if you use one - I use JDownloader which is free and since I have 1TB of downloads capability per month (which I pay for from my ISP) naturally I like to get my money's worth - you can see my other posts to get a better idea of options there - give up storage CD's and DVD's in favour of 2TB hard drives is my suggestion.
Unpack in "D" and install from there into "C", once you have unfrozen "C". You can setup software in "C" and run it from there whilst your PC is locked by Deep Freeze, however, when you reboot, that program will have been wiped from your PC's hard drive and it will reset back to your original setup after freezing "C".
Run DWS.exe and delete all of the Microsoft access to your computers, both Windows 7 (which is no longer supported by Microsoft) and Windows 10 (when you have NAS up and running) and thereafter don't ever update your Windows 10 or Windows 7 programs from Microsoft - turn off the update function and rely on Deep Freeze to keep your PC's safe.
You can install Windows 7 operating systems onto your PC's which are formatted to MBI - and Windows 10 to PC's which are formatted to GPI, however they are otherwise both incompatible with each other.
You can delete Windows 10 and install Windows 7 on a hard drive, if you convert the hard drive format from GPI to MBI first and before you format your Deep Freeze unprotected hard drive (but use the Deep Freeze installation program to remove Deep Freeze entirely from your PC, before you format it) - and some partitioning programs have this function, however I'm not the full box and dice on the procedures and perhaps someone else on this forum can explain those procedures to us, better than me.
Now, run Emergency Kit Scanner (keep it updated - it is not invasive) and find and remove all backdoors, ransomeware, malware, trojans, worms, rootkits from your PC's, in fact whenever you install any new software, always run Emergency Kit Scanner to make sure your PC's are completely clean and once you are satisfied they are, go to the next step.
Run Faronics Deep Freeze and freeze "C". You must set a password to lock and unlock Deep Freeze and to access the program, you have to hold down Ctrl Alt Shift F5 or F6 and when prompted, put in your password then select unfreeze (for example) and let the program reboot your PC, whereupon "C" is unlocked and you can add or remove software unimpeded.
Thereafter always rely on Deep Freeze to keep you safe on the internet and you don't need Windows 10 or Windows 7 updates or patches, unless you are doing something which requires ultimate Operating Systems security from hackers, but if you do update, then run DWS.exe afterwards to remove Microsoft from your PC's and then Emergency Kit Scanner, before locking the "C" drive with Deep Freeze again. Remember that if Microsoft stopped NAS from working, a new update from Microsoft will probably do the same thing again and you will be back to square one.
DWS will keep you safe from Microsoft and whatever Microsoft records from any of its windows Operating Systems and if Microsoft can't reset your Windows 10 PC's so that NAS or anything else, no longer works, as long as Deep Freeze is locked, whenever you are on the internet. By the same token, if you pay for an antivirus program, it is just as likely that the manufacturer of that antivirus has determined NAS as being illegal and stopped your PC's in their tracks - so delete it and install Emergency Kit Scanner, but if you want to pay for a similar program, download Spy Emergency instead and use that instead (I use both).
DWS.exe works fine for now, but only for as long as it takes for Microsoft to find some way of combatting it.
I have run Windows 7, as I installed it, off the original CD, without any backups for years - using Deep Freeze to keep it secure from online threats and I still do, just as it came off the CD and nothing has integrated with my PC without my knowing about it.
Always download from digital warehouses, like Nitroflare, for example - don't share or download from computers online where you don't know who is running them - Government Departments are hunting down people who share stuff in that way here and prosecutions are ongoing - digital warehouses work as a watershed between you and the person who uploaded whatever you decide to download and only the digital warehouse might keep a record of each transaction, but I doubt it, of course, so your footprint remains as safe as it can be online, in this way.
Search in DuckDuckgo like this and for example: ebay mens woolen jumpers...and you will get a lot more choices than relying on eBay's search engine. Anything else, the name of a digital warehouse for example: nitroflare emergency kit scanner and follow the links to the download, which you could copy and paste into JDownloader - "start all downloads" bottom right hand corner - set and forget.
Hope this all helps......smile......