Windows 7 Windows 10 to Windows 7 due to disk usage issue

Hi ashfaq267,
You have some good suggestions here. I'd just like to add that a Win7 DOWNGRADE on your Lenovo laptop may not be possible due to hardware incompatibilities at the Motherboard level. Your notion of calling Lenovo on that is right on the money. When you call their Support line they will ask for your laptop serial number, and run your config on their computer database. They can then tell you if that's possible, Yes or No. If No, you should consider the recommendation to upgrade to Win10 as recommended. It is more stable than 8x, but you may have some driver issues to work out as kemical pointed out, Lenovo is not currently supporting Win10 as their lack of posted Win10 drivers for your specific model tell you.

If the answer to the DOWNGRADE question is "YES", most likely Lenovo will charge you for Win7 factory media discs or usb stick as the downgrade is not included with your laptop purchase. Prices on this will vary from $29 to $99 in the U.S., possibly more overseas due to tariff and international shipping if it comes from China which is now where Lenovos are manufactured.

Windows OS downgrades to versions earlier than the one supplied on the computer are often frowned on by Techs, as they can cause their own litany of problems, even if the factory claims that downgrade is supported on your Model. Of course, this is your call here. Thing you have to think about is cost. A Windows reset to factory version (Win8) is free, either with factory discs that came with the laptop in the box, or Recovery Discs made by you by Lenovo Media Recovery tool or similar, or the built-in factory Recovery Partition stored on the laptop's hard drive. This tool is pretty much on all modern laptops; Win7 and later across all major brands (with a very few exceptions). The Win10 upgrade is free to use now until > July 29th 2016, after which you will have to pay $119 for Win10 Home, or if you upgraded to Win10 Pro which will cost you $199. Almost certainly, the Win7 DOWNGRADE will cost you money for media if purchased direct from Lenovo support, again $29-$99. The downgrade is going to be good for only 4 years; Microsoft is planning end of life for all Win7 products in 2020. Win8, about 2024 gives you 8 years; and Win10 is 2025-2026 say 9-10 years. If you wish to maximize the life of your Windows investment, the Win8 is probably the cheapest-at free-and the Win10 is close to a decade, but is the most expensive option. I am choosing to upgrade all my Win10 machines > July 29th and I now have 5 of them; 1 is a legit Win7-Win10, so I'm looking at purchasing a 5-user multi-PC pack license. If you have only the 1 machine, I suggest you weigh these options.

In my experience, after about 6 months to 1 year, after a rollout of a new Windows version, it makes sense to go to the newest version if possible to maximize your performance and productivity of your computer hardware.

Let us know how it turns out for you.
Best of luck,
<<<BIGBEARJEDI>>>