Not at all. No problem.
Rebooting is a well-known, if slightly mysterious way of putting many things right ... including nuclear submarines, or so it says in the advert!
Or like the old thing about what would be in the owner's manual if Microsoft built cars. " In the case of an engine malfunction, close all open windows and restart"
Avatar FX6327X Desktop, AMD FX-6300 6 core CPU, Radeon R9-270X graphics, 8GB RAM, Windows 8.1 64 bit, Bitdefender Free antivirus, MBAM on demand
HP6140 Laptop, AMD A8-3500M Quad Core APU, 6GB RAM, Windows 7 Home Premium 64 SP1, Bitdefender Free, MBAM
Google/Asus Nexus 7 tablet, Qualcomm Snapdragon quad core 1.5ghz, 32GB storage, Android 4.4.4, Dolphin browser, TrustGo Mobile Security All machines behind a NAT router