I was given a Windows 8.1 tablet that once had a detachable keyboard which the guy lost. he reset the whole computer and after I got my information on it instead. After the reset, Windows was no longer activated and I had to reactivate it. which neither of us knows why, it was activated before we did a data factory reset. after I created my user, I installed a bunch of exes. now I go to try to see if I could test out the Windows Store to search for apps. but I search "Windows Store" or "app store" and several other things that may bring it up, but it always says, "no apps match your search" like if the Windows store is missing or somehow magically removed with the reset process. How do I get it back?