Wireless speeds slow, fast in safe mode?

Hi all ive had this problem since i got my pc, basically my wireless speeds are around 0.5mb when i do a speedtest on windows, however on safe mode it will be 12mb. there's obviously some sort of conflict which i have struggled to identify.

here is what i tried

- fresh installs, although at the start the speeds are fine but once i install more drivers/programs it will do it

- installed different wireless drivers

- disabled certain processes/services

windows 7
pci express wireless adapter - TL-WR781ND
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More about wireless speeds slow fast safe mode
  1. Your wireless speeds are slow, but how about when you plug your computer directly into the router? Are speeds still slow? If yes then can assume not a wireless issue.

    1. Update bios if not up to date. (carefully)

    2. Completely uninstall any virus protection other than your main one.

    3. Do a factory restore on router and redo security. (know you said speeds are fine at first but this is something that i do every time i go on a internet speed issue to be on the safe side)

    A few things you can also test to help verify issue is to test speeds at a different location and compare with someone elses speed.
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