you just need to update the wireless driver to fix wi- fi problem please also make sure wireless switch is on and password for wireless is correct update and get the latest version of the software for wireless adopter visit GUIDE-how to fix laptop won't connect to wireless and this should help you . comment below and let me know if this did help you .
Clean your the easy way with clean my PC. - You can run "sfc /scannow" command - You can remove temp files. - You can run clean mgr - You can remove pref etch files. - You can uninstall unwanted software . - You can remove all the dust from your PC by blower. for more visit Top 10 tricks(Quick And Smart steps) to Speedup your computer => Find resource-hungry programs. => Close system tray programs. => Disable startup programs. => Reduce animation. => Lighten your web browser. => Scan for malware and adware. => Free up disk space. => Defragment your hard disk. => Uninstall programs which you don't use. => Reset your PC / Reinstall windows
If your are not getting your wireless internet so follow these steps. > Check WAN and LAN connection. > Verify wireless adopter . > Verify AP and router setting. > Verify TCP/IP settings. > Verify network connection with ping. > Check wireless-specific issues. > Look for a security mismatch. > Ensure RADIUS is working. > Check 802.1x EAP and user login. > Check interm ittent network connectivity issues.
If your computer is running slow so maybe any kind of virus has reached in your computer. You can cleanup your computer. You can remove temp files of your computer. You can run clean mgr in your computer. You can remove all unwanted software from your computer which you have downloaded. You should put anti virus in your computer and scan your computer by anti virus once in a month. You have to up to date your anti virus . You can clean dust also from your computer by blower.
> If your computer is not opening so firstly you need to check your switch is on or not on maybe your didn't on your power switch. > You can check your power cable also. You can take out this power cable and put in another computer so like this you can check your computer power cable. > Maybe your power cable port is not working. > You can check your RAM also because some time because of dust RAM doesn't work . So you can remove your RAM and clean to pins of RAM .