Windows 10: Downloads Being Blocked

Some time in the last few weeks, my computer has started blocking downloads. It attempts to download, say, a program but then says “Can’t download – Blocked”. No other information is given. It doesn’t even indicate which program the message has come from. The same thing happens whether I use Edge or Chrome. I would try other browsers but I can’t download any. I can’t even download Microsoft Safety Scanner.I have tried many of the suggestions made on various websites but nothing has worked. So far, I have tried,running virus checkersturning off the viru

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UAC prompt for Task Manager. MMC blocked. What happened?

It's possible that Computer Management is being blocked by SmartScreen. We suggest disabling it and see if it helps. Follow the steps below:

1. Click the Start button.
2. Type smartscreen in the search bar.
3. Click Change SmartScreen settings.
4. Click the drop-down arrow in the Security row.
5. Click Change settings beneath the WindowsSmartScreen row.
6. Click Don't do anything (turn off Windows SmartScreen).
7. Click OK.

 

New here and seeking for help: problems with graphic card

Thanks very much lilhasselhoffer. I'll start doing what you suggested step by step.

One question thou: you suggested me to Download the latest driver package from Nvidea. However, the link you posted is for the newly released GeForce GTX 760? Am I supposed to download the drivers for that card?

Sorry for my questions. As I said, I'm not an expert at all.