[PC] ntdll crashes, sick and tired of it

What are your PC specs? Also have you run an integrity check on your windows installation?  If not here's how to do it from a fellow Hero @2042isNotBF it also works on Win10 and you can use the repair utility in Win10 just like in Win8\8.1 and this utility has solved problems for me in the past with various gaming and non-gaming issues on Win7 and Win10.

Have you ever tested your windows for  errors even if it acts stable I would still try this as it cant hurt....

 This next part works in all windows O/S vista win 7,8 and 8.1 windows system file checker  :]

...... sfc /scannow ..... ever hear of it  if not your going to love this .... it will inspect all the important windows files as well as the windows DLL files. If windows system file checker finds any issues with the windows files and windows DLL files it will replace them. This little tool as well as the event viewer saved me  and fully helped me fix my BF4 issues as well as saved my .... many a format since I found it. This is the best toy they ever put in windows :]

1 - Open administrator command prompt  and close web pages and programs like origin

2 - Type or copy and paste in   sfc /scannow   and hit enter, This takes 5 min to 15 min  SSD vs HD

3 - This can go one of a few ways ..... no errors  ... it fixed some  errors  ..... could not fix all errors...... does not finish checking and errors out ....... and the last one could not fix errors at all :/

4 -After its done reboot and do it again even if you had no errors the first time or had errors, could not fix ...  run sfc /scannow  again and when its done a second time  reboot. You need to do this a and get no errors 2 x in a row ...

5- So if you ran it 2x and no errors your safe you can stop now for now  lol, If you had errors first time but not the second then run sfc /scannow  again and when its done reboot. You need to get could not find any errors 2 x to be safe. If it still finds errors try and run it a few more times until it finds no errors 2x AND ALWAYS REBOOT BETWEEN RUNNING sfc /scannow 

6 - If you get a message indicating that it can not be repaired and you ran sfc /scannow  2X in a row on win vista or 7 mm you need a format :/ But after format and all updates are done run  sfc /scannow to make sure your windows is stable same deal 2x error free reboot between, then If your O/S is Win8 or Win 8,1 then you can run this next command / line in administrator command prompt. Sadly this does not work for win vista or 7 :/  It will restore the health of your PC and you dont lose anything 

dism.exe /online /cleanup-image /restorehealth   <------- ONLY works for windows 8 and 8.1

7 - When its done reboot