Select the search bar on the taskbar and type defrag. Click Defragment and Optimize Drives. Select the disk drive you want to optimize. Click Optimize. Click Optimize again.

Press Windows key + E to open File Explorer Click This PC, My Computer or something similar. Right-click the drive with your Windows installation ( it’s usually the “C:” drive), Click on Properties. Click the button that says Disk Cleanup, located next to the graph demonstrating disk usage. Click the checkbox next to the files you want to delete. Click Ok. Click Delete Files.

Click the Windows Start menu. Click the Settings/Gear icon. Click About. Click Advanced System Settings in the menu to the right. Click Settings under “Performance. " Click the radio option next to “Adjust for best performance. " Click Apply. Click Ok.

Right-click your computer’s desktop. Click Display Settings. Use the drop-down menu below “Display resolution” to select a lower resolution.

Press Windows key + R to open Run. Type msconfig next to “Open” and click Ok. Click the Boot tab. Click the checkbox next to “No GUI Boot. " Alternatively, you can the checkbox next to “Safe Boot” and make sure “Minimal” is selected.

Click the Windows Start menu. Click the Settings/Gear icon. Click Apps Click Programs and features in the upper-right corner. Click a program you want to uninstall. Click Uninstall above the list of apps. Follow the instructions to uninstall the app.

Click the Windows Start menu. Click the Settings/Gear icon. Click Apps. Click Startup in the menu panel to the left. Click the toggle switch next to any startup apps you don’t want to startup during the boot process.

Press Windows key + R to open Run. Type %temp% next to “Open” and click Ok. Press Ctrl + A to select all files. Press the Delete key.

Click the Windows Start menu. Click the Settings/Gear icon. Click Apps Click Programs and features in the upper-right corner. Click Turn Windows Features on or off in the upper-left corner. Uncheck any Windows components you don’t want to use.

Press Windows key + R to open Run. Type Prefetch next to “Open” and click Ok. Press Ctrl + A to select all files in the Prefetch folder. Press the Delete key.

If the processor you want is not compatible with your motherboard, you may want to consider replacing your entire motherboard.

Warning: Overclocking your computer can cause your processor or graphics card to overheat and do damage to your computer. Do not overclock your computer unless you know what you are doing and are willing to assume the risk.

Warning: Reinstalling your operating system will most likely erase all the data on your hard drive. Be sure to back up all files and data you want to keep before attempting to reinstall your operating system.

Warning: Before switching to Linux, consider that many popular apps and software do not work for Linux. Programs like Microsoft Office, Adobe Creative Cloud, and many popular games do not have a Linux version. However, you may be able to find free alternatives to these programs for Linux. For example, instead of using Microsoft Office, you may be able to use LIbre Office instead.

action Windows/DOS Windows Powershell,Mac OS X, Linux, BSD etc. list directory dir ls clear console cls clear copy file(s) copy cp move file(s) move mv delete file(s) del rm create directory md mkdir remove directory rd rm -rf change current directory cd cd current directory cd, chdir pwd search find grep concatenate cat cat permissions chmod chmod display/output text echo echo add user net user adduser