Common problems are Windows takes a long time to start to fix CTRL+Shift+Esc on your keyboard to bring up the task manager in windows, startup the tab in the task manager window at the top of the window, if there is a big list it is likely that your PC with taking a long time to boot. The PC keeps disconnecting from the Wi-fi network to fix, in the power options, go to advanced setting, expand wireless adaptor settings, and then power-saving mode in this window, this should be set to maximum performance. Printers are not working try to turn them off and on or disconnect them and plug them back in. by double-clicking on the printer icon in the system. Apps that are acting erratically use an online search engine to enter in the program's name and a description of the problem, its also worth checking the apps developers' website to see whether a fix has been. Problems with the keyboard toggle keys and filter keys must have been activated in the windows setting to cause these issues.