I am using Windows 7. But I have a problem. My pc boots slowly for no reason. 1 day ago, it was fast and normal. But now it's lagging. Even the task manager is showing a static memory usage. It doesn't decrease or increase more fast. Also openning a file takes much longer (about 2 minutes to open a folder and 5 minutes to open google chrome).
The response time of my Windows is terrible! How do I fix this.