The text you provided appears to be a set of instructions for troubleshooting an issue with the HP Photosmart 5520 printer driver being unavailable on Windows. Here's a breakdown:

1. Unplug any USB cable from your computer.

2. Press `Windows + R` simultaneously to open the Run dialog box.

3. Type `printui.exe /s` and click OK.

If these steps don't resolve the issue, you may need to perform more advanced troubleshooting or contact HP support for further assistance.

Additionally, if none of these solutions work, please try checking your computer's print queue by following these steps:

1. Click Start > Devices & Printers.

2. Right-click on your printer and select 'See what's printing'.

3. If there are any documents stuck in the queue, you can right-click on them and select 'Cancel' to remove them.

If none of these solutions resolve the issue with your HP Photosmart 5520 driver being unavailable, it may be necessary to contact HP support for further assistance or consider replacing your printer altogether.

Hp photosmart 5520 driver unavailable