I have had boinc on my windows 7 machine for a long time and it stopped getting tasks sometime in October. I have SiDoc@home, Rosetta@home & DENIS@home and get no tasks for any of them. I updated to version 7.20 with the Virtual Box install, but no change. I thought maybe it was the OS or hardware so I tried installing the same thing on my windows 10 laptop and still no tasks. Any help would be appreciated. Thanks

DENIS has not had any tasks since late August and the last update from project scientist/admin was late October that they are working on a fix to the software....   No updates since then.

SiDiock currently is out of work and should have more work soon.

Rosetta has not had any work for the non-VBox tasks in many months.
The VBox task require minimum of 3 to 4GB RAM EACH and LOTS OF DISK SPACE.
You need to ENABLE EACH COMPUTER TO ALLOW VBox Tasks what Roseetta calls "VirtualBox VM jobs".
1 *** Once logged in to your Rosetta account page using your web browser, go to Your computers
2 *** Once there click on the BLUE LINK titled "Details" below the computer number you want to change.
3 *** Then scroll to almost BOTTM of page where you will see VirtualBox VM jobs and a blue and red box that will say either Allow or Skip..
4 **** IF says Allow click button to Allow the VBox task on that PC. OR it says Skip you are already set to receive VBox tasks on that PC.
4.5 *** Repeat steps 1 to 4 for EACH PC to set or skip VBox task,
5 You will then need to go to your BOINC software on each PC and click on update for the Rosetta project.

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...Continued from previous post to get around hot link limits
Next time you are not receiving work from a particular project GO THE THE PROJECTS SERVER STATUS PAGE and there you can see what type of work is available, if any.
Below I have provided links to the three project you mentioned STATUS PAGE so you can save/reference them in future.
DENIS Server Status Page: https://denis.usj.es/denisathome/server_status.php
SiDiock Server Status Page: https://www.sidock.si/sidock/server_status.php
Rosetta Server Status Page: https://boinc.bakerlab.org/rosetta/server_status.php