Go to run and run msconfig, click on startup tab and click on disable all, click ok and restart. This helps speed up startuploading time and disable some of the adware.

There is another way by finding the location of the adware (it usually located in ur internet temporary or temp) then delete it manually, if u cant just restart, go into safe mode (if the files locate in ur /system or /windows dont mess wid it) delete it.

I completly got rid of a trojan wid this method. Note: Not every adwares/trojans can be easily clean wid this method so dont rely on this too much.