Linux is just way more stable. Ive had miner executable uptimes of 60-70 days. Thats not system uptime, thats literally how long EWBF ran uninterrupted. In my experience, ive managed about 300 windows rigs and we had to constantly reboot like 20-30 a day no matter what we do to them.
I have both ubuntu and windows 10, it is true that linux is more stable, but windows 10 is much easier in OC. And I did not face any reboot issue in Windows 10, do you mean windows update reboot?
I have both Linux and Windows rigs as well and agree that Windows can be just as stable as Linux. The biggest issue is Linux is stable out of the box and with Windows you need to put in a fair amount of work to stabilize it. You need to shutoff auto updates and disable a fair amount of unneeded services, remove unneeded programs, apps, adjust networking and firewall settings, etc. But once you have done it, you can apply a script to future builds to automate most of the settings.
Anyway, I have optimized Windows builds with 3-4 month up-times too, even with running Claymore. EWBF hasn't been around as long, but I do have a couple of rigs with 2+ month miner up-times. Most of the time if a rig does go offline it is because I take the machine down to either install new drivers (the AMD blockchain compute was a big one) or do other maintenance.
Generally if you have a rig or miner program crashing all the time you have something in hardware (or possibly drivers) not right. Double check all connections and ensure your risers and GPUs are getting adequate power. If you have many rigs invest in a PSU tester/meter and make sure all the ATX voltages are within spec. Reseat RAM and all the motherboard power and riser connections . Ensure your CPU heatsink is on correctly and cools the CPU. If your problem is in the mining program maybe you are overclocking or under-volting too much. Back off a few clock cycles and see if it stabilizes. You will probably gain that half of Mhash or two you lose in increased system up-time and reliability.