The reason is simple: it has something to do with your system!
If startup items, background services, trojans and viruses all affect your machine!
You can use safe mode to kill viruses, optimize the system, clean up garbage and registry!
However, most of them have many tails, and you can't clean them up!
I suggest you follow my long-term accumulated experience and handling methods:
First of all, the operating system must install the non-ghost version, and the pure version!
If you are using the original win7, I suggest one-click restore and skip this!
Second, the system driver is installed correctly.
Please enter your machine service/serial number in official website, automatically judge the driver, and download and install it from top to bottom in the list order!
There is an order for the installation of drives.
Recommended installation order: motherboard chipset driver-> Graphics driver->; Sound card driver->; Network card driver->; Power management software->; Touch pad driver-> Wireless network card driver->; Bluetooth driver->; Card reader driver-> Camera driver->; Other applications!
Pay special attention to, after installing the motherboard driver, graphics card and sound card driver, be sure to restart.
Third: windows system online upgrade, full patch!
Fourth, install necessary anti-virus programs and other applications.
Only one antivirus and fire prevention software can be installed. There will be conflicts if there are too many. The number of simultaneous startup and service programs will increase, which will increase the occupation of system resources. At the same time, there will be false positives!
Fifth: system optimization and disk defragmentation
Use system optimization software, such as windows Optimizer, to handle startup items, services, registry and junk files.
Sixth: one-click GHOST, backup system, easy one-click restore!
Seventh: Install your necessary programs!
In fact, there are many game software that can be installed without installation. Just make a green version yourself. Not here!
Eighth: Reuse the system optimization software once to deal with startup items, processes, services, registry and junk files.
Ninth: If you use 360 tools, please uninstall them all. We just use it as a system tool! Don't need him to pretend every time!
If you do this, your system will be safe!