Laptops boot to Startup Repair when there are corrupt startup files on the hard drive. Allow the laptop to complete the process. Then, sign into Windows and do the following to prevent it from recurring: Open a command prompt window. Type CMD into the Search bar. Right-click the Command Prompt option and select “Run as administrator”. Copy and paste this command into the window: dism /online /cleanup-image /restorehealth && sfc /scannow These commands should repair the corrupt files.
If the problem started after a BIOS settings change, try going into BIOS and reset it back to factory defaults. If that doesn't work, try resetting Windows. A clean install (possibly with Windows 11) may be a final resort.
Speedtest by Ookla is free at the Google Play Store, and can provide a detailed analysis of your WiFi. https://play.google.com/store/apps/detai...-AM If the app shows poor results, then try unplugging/re-plugging all the cables and power cords to your router. Then try again. However, if the tablets get a poor signal on other WiFi networks as well, the problem may be the tablets. Confirm that all the latest software updates are installed in them. This is just my opinion, but your ISP will most likely not tell you that their own service is poor, so I would take their word with a grain of salt.
If the laptop suddenly doesn't turn on, and there are no lights, then it may not be charged. Try making sure that all the parts of the AC adapter are securely connected together. Remove the battery and put it back in (if the laptop will allow). Then plug one end of the adapter into the laptop firmly, and plug the other end into a different electrical outlet than before. If this doesn't work, then replace the adapter first. Then replace the battery.
When resetting a phone, the phone first prompts you to enter the phone's access code. Resetting it without the code is impossible. Signing into the phone to use it at all is impossible, as well. I wonder why the previous owner didn't give you the code.
If your black ink isn't printing, try replacing the printer cartridge, if you haven't already. The Epson Workforce 645 uses a Epson T126120 black ink cartridge. If you already did this, try removing the cartridge and reinserting it firmly. Make sure to remove the protective tape rom the ink nozzles, as well.
Run an audio troubleshooter to find and fix errors. Open a command prompt by typing CMD in the Search box at the bottom left of your display. Select “Command Prompt App” from the list of options. Then copy and paste %systemroot%\system32\msdt.exe -id AudioRecordingDiagnostic into the prompt. Follow the prompts to select your microphone and troubleshoot it.