Help Please Cannot access development site

Hi All

I am relatively new to WordPress and I would appreciate some help in accessing a development site I have using XAMPP running on Windows 10 from a Flash Drive.

My development site was working correctly until yesterday when I installed some Windows 10 updates.

I can load the XAMPP Control Panel but when I click on start Appache I get the following error message:-

15:01:27 [main] Checking for prerequisites
15:01:27 [main] All prerequisites found
15:01:27 [main] Initializing Modules
15:01:27 [main] Starting Check-Timer
15:01:27 [main] Control Panel Ready
15:01:33 [Apache] Attempting to start Apache app…
15:01:33 [Apache] Status change detected: running
15:01:34 [Apache] Status change detected: stopped
15:01:34 [Apache] Error: Apache shutdown unexpectedly.
15:01:34 [Apache] This may be due to a blocked port, missing dependencies,
15:01:34 [Apache] improper privileges, a crash, or a shutdown by another method.
15:01:34 [Apache] Press the Logs button to view error logs and check
15:01:34 [Apache] the Windows Event Viewer for more clues
15:01:34 [Apache] If you need more help, copy and post this
15:01:34 [Apache] entire log window on the forums

When I try to run MySql I get the following error message:-

15:02:59 [mysql] Attempting to start MySQL app…
15:03:00 [mysql] Status change detected: running
15:03:01 [mysql] Status change detected: stopped
15:03:01 [mysql] Error: MySQL shutdown unexpectedly.
15:03:01 [mysql] This may be due to a blocked port, missing dependencies,
15:03:01 [mysql] improper privileges, a crash, or a shutdown by another method.
15:03:01 [mysql] Press the Logs button to view error logs and check
15:03:01 [mysql] the Windows Event Viewer for more clues
15:03:01 [mysql] If you need more help, copy and post this
15:03:01 [mysql] entire log window on the forums

I have found by searching the internet that the problem could be related to Port 80 being in use and following the instructions I found. I have no applications using Port 80.

I have also installed a completely new copy of XAMPP on a different Flash Drive which works ok. I have copied across the directory that contains my development site. When I try to load my development site I get a database connection error. I assume this is due to the database being on the other Flash Drive.

How can I rectify this situation.

Many thanks in anticipation of help.

PS I do have a backup plugin or the test site but I am not sure which one and I have been regularly backing up the development site. How can I access the back ups.