I had the same bug on an alienware (dell) pc. I followed the above link from Giovanni and it seems to be caused by "Dell Datasafe local backup" and "Dell Datasafe local backup support software". I uninstalled those two programs in windows (restored grub again) and have not experienced the issue since.
I had the same bug on an alienware (dell) pc. I followed the above link from Giovanni and it seems to be caused by "Dell Datasafe local backup" and "Dell Datasafe local backup support software". I uninstalled those two programs in windows (restored grub again) and have not experienced the issue since.