Visit the following links on the target system and download the portable executable archives, then extract the archives and place the folders on the desktop
Press "Win + E" on your keyboard to open an Explorer window
Delete old or unnecessary files from "C:\", "Desktop", "Documents", "Downloads", "Music", "Pictures", and "Videos"
Exit
Existing Applications
Press "Win + S" on your keyboard to search for "Settings", then open it
Click "Apps", then "Installed apps"
Uninstall any apps that are no longer required
Exit and restart
Start Menu
Press "Win + E" on your keyboard to open an Explorer window
Copy and paste C:\Users\%username%\AppData\Roaming\Microsoft\Windows\Start Menu\Programs into the address bar, then press the Enter key
Move application shortcuts located in a folder into the "Programs" folder (e.g., "MPC-HC x64" in the "MPC-HC x64" folder should be moved directly into C:\Users\%username%\AppData\Roaming\Microsoft\Windows\Start Menu\Programs, while "Uninstall MPC-HC x64" should be left in the "MPC-HC x64" folder)
Delete any residual folders (e.g., the "MPC-HC x64" folder should be deleted)
Repeat with C:\ProgramData\Microsoft\Windows\Start Menu\Programs
Exit
Program Files
Press "Win + E" on your keyboard to open an Explorer window
Copy and paste C:\Program Files into the address bar, then press the Enter key
Delete any folders related to uninstalled applications
Repeat for C:\Program Files (x86)
Exit
Program Data
Press "Win + E" on your keyboard to open an Explorer window
Type "%programdata%" into the address bar, then press the Enter key
Delete any folders related to uninstalled applications
Exit
App Data
Press "Win + E" on your keyboard to open an Explorer window
Copy and paste C:\Users\%username%\AppData\Roaming into the address bar, then press the Enter key
Delete any folders related to uninstalled applications
Copy and paste C:\Users\%username%\AppData\Local into the address bar, then press the Enter key
Delete any folders related to uninstalled applications and any "cache" folders
Exit
Registry
Press "Win + R" on your keyboard, type "regedit", then press the Enter key
Copy and paste Computer\HKEY_CURRENT_USER\SOFTWARE into the address bar, then press the Enter key
Press "Win + R" on your keyboard, type "regedit", then press the Enter key
Delete any folders related to uninstalled applications
Repeat for Computer\HKEY_LOCAL_MACHINE\SOFTWARE
Exit
Temp
Press "Win + E" on your keyboard to open an Explorer window
Type "%temp%" into the address bar, then press the Enter key
Press "Ctrl + A" on your keyboard to select all files and folders
Press "Del" on your keyboard
If prompted to provide administrator permission, check "Do this for all current items" and click "Continue"
If an action cannot be completed, check "Do this for all current items" and click "Skip"
Exit
Device Cleanup
In the "tools" folder, right-click "DeviceCleanup", then click "Run as administrator"
Press "Ctrl + A" on your keyboard to select all items
Under "Devices", click "Remove selected"
Exit
CCleaner
Open "CCleaner64" from the "tools" folder
Under "Registry", click "Scan for Issues"
Click "Review selected Issues...", then "No", then "Fix All Selected Issues"
Repeat steps 2 and 3 once more
Click "Tools", then "Startup"
Click "Scheduled Tasks", then "CCleanerCrashReporting", then "Delete", then "OK"
Click "MicrosoftEdgeUpdateTaskMachineCore", then "Delete", if available
Click "MicrosoftEdgeUpdateTaskMachineUA", then "Delete", if available
Click "Windows Services", then check "Advanced Mode"
Attempt to disable all services except the following:
Apple Mobile Device Service (if present)
Microsoft Office Click-to-Run Service (if present)
NVIDIA Display Container LS (if present)
Power
Print Spooler
Windows Audio
Windows Audio Endpoint Builder
Windows Connection Manager
Windows Event Log
WLAN AutoConfig
Exit
PrivaZer
Open "PrivaZer" from the "tools" folder
Click "Cancel", then click "Basic user" to change to "Advanced user"
Click "Advanced Options" > "Memory" > check "After each cleanup with PrivaZer", then click "OK"
Click "Stop" and "Disable" under "Wsearch Indexing", if available
Click the blue arrow to return
Click "Scan in-depth", then click "Computer"
Check all "Select scans" options
Click "Modify", click "OK", and change "Smart" to "Remove all"
Click the blue arrow to return
Click "Scan"
Click "Clean", then "Normal cleanup"
Click "OK", then "Close", and exit
BleachBit
Open "bleachbit" from the "tools" folder
Click the icon in the top-left corner, then click "Preferences"
Check "Download and update cleaners from community (winapp2.ini)", then click "Close"
Exit and reopen "bleachbit"
Check all folded categories and click "OK" for all prompts
Uncheck "Free disk space" under "System"
Click "Clean", then "Delete"
Exit
Disk Clean-up
Delete all tools
Press "Win + S" on your keyboard to search for "Disk Clean-up", right-click it, and select "Run as administrator"