Upgraded from windows 10 home to windows 11 25H2 home on unsupported laptop using FlyOOBE
I have an older laptop from 2016. It's a toshiba satelite C55-C.
GPU: NVIDIA Geforce 930M CPU: Intel Core i5 6500U RAM: 16 GB (8x2) DDR3 SSD: Samsung 870 QVO 1 TB
I was kinda nervous to switch to windows 11 because of all the problems people have with it but figured I had to do something cuz of windows 10 end of life. So after browsing many many youtube vids and reddit threads about windows 11 possible problems, linux vs windows and whether older devices close enough to my laptop were struggling on windows 11 or not, I finally decided to bite the bullet and upgrade to windows 11. I discovered I had TPM 2.0 and Secure boot but I needed to have boot mode set to UEFI. That problem was pretty annoying to deal with because the solution is to convert your main drive from MBR to GPT but that is not possible if you have partitioned your drive, which I did. After combining my partitions, converting to GPT, switching to UEFI, turning on TPM 2.0 and Secure boot, I still had an unsolvable problem which is my laptop's CPU. I searched around a lot seeing if that would be a problem and the main thing people said was that your CPU needed to support SSE 4.2 and POPCNT. I installed a program called CPU-Z and it showed that my CPU did support SSE 4.2. I then discovered flyby11 (classic) which also checked from both so I checked it and it said my CPU supported both and had a very high upgrade probability which gave me a lot of confidence in upgrading to windows 11. I then discovered that windows 11 25H2 was gonna come out most likely in October so I decided to just wait for a month and upgrade to this new feature update then. Now it's October, Windows 11 25H2 came out and I decided to use FlyOOBE to upgrade. It was a pretty painless experience. Just downloaded the Windows 11 ISO from microsoft, Dropped it into FlyOOBE and chose to keep all my files and apps. A couple of clicks and 20 mins later, I was on Windows 11. I decided to somewhat debloat it and minimize some of the clutter which people always made seem much worse than windows 10 but its honestly pretty much the same. Windows 11 so far works flawlessly except for a little nitpick when I restart the laptop which is that the taskbar doesn't load except after like 5-10 secs so it gave me a mini heart-attack the first time it happened. But so far, it is 1-to-1 in terms of daily use compared to windows 10. I haven't had any bugs or crashes and browsers & games run exactly the same as on windows 10. I decided to make this post for anyone that has similar hardware to mine but is afraid to upgrade. Or even if your hardware supports windows 11. There's too much fear-mongering going on and I admit I fell for it but after searching around, I realized that it's mostly unnecessary. Honestly so far in the last 24 hours, it's been great and I can download windows updates no problem. If I ever encounter any problems I will post them as edited updates here if anyone is interested.
Posted Oct 2, 2025, 1:45 PM UTC