First, use 360 to clean up all the garbage, click 360 garbage cleaning → Settings → Select All → Select All in the settings, and then click Select All in the cleaning items on the left. You can clean up a lot more → clean up plug-ins → don't patch → ignore all vulnerabilities no matter how 360 shows up. And uninstall all the patches that have been played before → Click Optimize Acceleration → Start the project → Disable all startup except the input method switching tool, including 360.
Do not buy online, browse illegal websites, and do not install anti-virus software. Don't start it.
Click Start → Control Panel → Programs and Uninstall → Uninstall useless programs (including those that come with the system) → Uninstall the programs installed on disk C and reinstall them on other disks.
Master of optimization
Slimming the system is a big project, which can clean up a lot of useless garbage in the system. Generally, it can clean up about 2G of space, which is also the garbage of disk C.
Vista system has been used for two years before, and the optimizer has been useless for a long time. I don't remember the details of the specific operation.
Back to the desktop, click Computer → Drive C → Clean up the disk garbage.
After all cleaning, defragment disk C, specifically, start → all programs → accessories → system tools → disk defragmentation, or right-click disk C. ..
As for other disks, they are all full. If there is no important information, format it all. Back up the data first.
Of course, vista system is huge, so it is recommended to install XP system or windows7 system in order to run smoothly. Relatively mature. Vista system is actually a great failure, which has attracted many criticisms from the society since it came out.