Windows 10: Please help! Activated Linux SubSytem, now can't get windows

Like the title says,

I activated the Linux Subsystem on Windows 10 and when I clicked on Reboot Now, it boots right into grub now as if I installed a copy of linux and the grub bootloader..

I would like NOT to lose all my files, I know I can use a live image to get into it and save the files, just a pain in the ass using this computer for burning images to usb.

:)

 

I have upgraded to Windows 10 from Windows 8.1. I started getting pop ups saying the activation key will expire on August 1st.

* Original Title: windows 10 activation

I purchased a lap top with windows 8 installed, I then took the free upgrade to 8.1, and later took the free upgrade to windows 10, all worked fine until July this year when I started getting pop ups saying the activation key will expire on august 1st, I
used the windows 8 activation key and it did not work, I used various keys suggested by windows, none worked, I had many error codes that I put on this site hoping for help, it is now August the 1st and now my computer shuts down every 4 hours.

If I can't get this fixed I guess my only alternative is Linux.

 

Windows 10 activation

I'm having problems activating my copy of Windows 10. Originally I upgraded from Windows 8 to 10 via update. I used to run Windows on Virtualbox as my main OS is on Linux, I've now decided to have a dual boot system instead, so made a clean install of Windows
10 on my hard drive, now Windows 10 can't activate. I'm guessing it thinks I'm still using my Virtualbox install so now it looks like I have two copies running.

Any ideas how to get this activated?

Thanks

 

Nevermind, sorry for the wasted post... I had a usb hard drive plugged in that had a linux image set up on it, i feel dumb. Sorry again for the wasted thread, OP please delete or archive