is this spec (x250) Good enough for running windows 8 or windows 10

[brannsiu]

Everything looks great except the memory, which is only 4GB and cannot be upgraded in my special offer.

I am quite worried about 4GB RAM...Would 4GB RAM make a quite lag when executing a several windows??

Now my desktop is Intel i5 2400Mhz with 8GB Kingston RAM , running windows home 7 but quite a bit lagged....

Please comment on the follwoing specifications: Thank you!!

CPU Intel® Core™ i5-5200U Processor (up to 2.70 GHz, 3MB Cache)
Operating System Windows® 8.1 64-bit (Eng, TC)
Free Upgrade to Windows 10 (Terms and Conditions follow Microsoft)
Chipset Integrated
Memory 4GB DDR3L 1600MHz (Max. 8GB) / 0 Free Slot
Storage 1TB HDD (5400rpm)
Display 12.5" FHD, IPS, Anti-glare (1920 x 1080)
Graphics Integrated Intel® HD Graphics 5500
Optical Drive No Optical Drive
Communication Gigabit Ethernet, Intel Wi-Fi 7265 2x2 AC / Bluetooth 4.0
Ports / Media 2 x USB 3.0(one Always On) / 1 x ethernet (RJ-45) / 1 x VGA / 1 x Mini DP / 1 x Dock connector / 1 x Fingerprint Reader / 1 x combo audio/mic jack / 4in1 (MMC, SD, SDHC, SDXC)
Camera HD720p Webcam
Battery (Internal 3 cell + External 3 cell) / Up to 10.7 hours
Size 305.5(W) x 208.5(D) x 20.3(H)mm
Weight Approx. 1.42kg
Others Backlit Keyboard

 

[Calculagator]

4 GB of RAM is fine most for most people's usage. The slow hard drive might cause "lag," but you should be fine with the RAM. Windows 8 and 10 both actually use less RAM than Windows 7. If you can run 7, you can run 8 or 10.

 

[jaguarskx]

Upgrading RAM is pretty easy to do on a laptop if you want more.