SHP Desktop V5.2: strange behaviour of Shadow Protect Backup Agent service in Windows 10

I  use SHP Desktop for several years (currently V 5.2.3). In the last few weeks I see some strange behaviour of the Shadow Protect Backup Agent (shadowprotectsvc.exe). Service startup is set to automatic as it should. The service gets active at different times without associated backup jobs, uses 5-10% of the cpu resources (most time 1st place in the sorted list of all tasks in an idle machine) and is associated with a low but constant read activity (about 100 KB/sec)  of some harddisks but no sdd. The “moderate activity” SHP service is running until shut down of the machine or manual stop. There are no noticeable negative impacts of manually stopping the service.

 I see this phenomenon on 2 machines and realized it after the Windows 10 creator update. One machine was a fresh install with Windows 10/1703, 64 bit, and has currently no backup jobs of SHP installed after the program installation of SHP Desktop. On the 2nd machine full SHP backups are running without a problem.

Fresh or repair installation of SHP Desktop doesn´t help. All “vssadmin-checks” show no errors  and list no “shadows”.

Bug or feature? Any information? What should I do to  solve this problem? Should I ignore it until a problem solution by STC or Microsoft?







More additional informations...

Meanwhile I realised some very negative impacts of that running and somehow active Shadow Protect Backup Agent (shadowprotectsvc.exe) service.

1. If a SHP backup job is starting during that activity, the backup job is not able to create snapshots via VSS API by STC provider. When I kill the Shadow Protect Backup Agent service and restart the backup job, that job will run and finish successfully.

2. When the SHP Backup Agent service is running as described with low CPU load and is continously accessing a harddisk, it is e.g. not possible to copy files from that harddisk to another location  because of extreme low transferspeed (some kb(!)/sec). After killing the Backup Agent Service process the file copy runs at normal transfer speed. 

Again, I see that strange activity of the SHP Backup Agent after the Windows 10 1703 upgrade.

Can somebody help to solve the annyoing problem?



I'm having the same problem

I've been having the same problem, and it started right around the time that I installed the Creators Update on Win10.

ShadowProtect Ver. on Win10 64 bit

This on a Surface Pro 4. When the Backup Agent process goes into "runaway mode", it heats up the machine, makes the fan run full blast, and kills battery life. For some time, I've had it automatically run a backup job once a day while I'm connected to an external drive, but the problematic behavior pops up at various times, and I am going to have to stop the process from auto-starting until this gets fixed.


Dennis Bowtell

Creators Update on Win10

The agent started consuming upto 20% of CPU all day since upgrade to Creators Edition Win10.  Another very similar machine that has not upgraded is not experiencing the CPU drain.

If I stop the process with Task Manager the laptop fans spin down almost instantly.

If I run another incremental backup the fans come up but then go away soon after the backup stops.  Agent not left running.

I will post this, then restart my PC to see if that has anything to do with it.


Dennis Bowtell

Creators Update (1703)

I just upgraded from ShadowProtect 5 to ShadowProtect SPX, and now my agent is behaving perfectly.



Same problem here!

I noticed this too when my external HHD enclosure (where I store my image backups) access lights started flashing immediately when I brought my comptuer out of sleep mode.  Task Manager showed that the only thing that was running was ShadowProtect Backup Agent at ~10% CPU.

Did anyone find out why this happens yet?


Hi STC, no comments to this problem?? :-(

I wonder that nobody of the STC-Team seems to have any information (interest?) concernig the problem with the Shadow Protect Backup Agent within Shadow Protect Desktop after Windows 10 Creators Upgrade (1703) . It is still there after several monthly updates of Microsoft.

Is that a problem of Shadow Protect Desktop or Microsoft? Are there any plans of STC to solve the problem?
Could the upgrade to Shadow Protect SPX be a possible solution?




USB3 card responsible for trouble?

i've been monitoring my situation over the past few days.  I installed the Win10 Creator's update some time ago and hadn't experienced this particular problem until recently.  i suspect now that it might have something to do with a new PCIe USB 3.0 card I've installed in my system.  If I have something like a external HHD attached to this new USB3 card and I bring my comptuer back from sleep, the Backup Agent starts up and starts accessing my disks and uses about 10% CPU.  If I reboot, the problem doesn't reappear until the system goes to sleep and comes back from sleep.  That said, if I don't have an external HHD attached to the USB3 card, I don't experience this problem at all when the system comes out of sleep.

I'd also like to hear from someone at StorageCraft for possible solutions, but I also wonder if this only affects a small subset of us with specific computer configurations.

For those of you who have upgraded to SPX, do you like it?  I've got no problems in upgrading if this is an improvement, but SPX looks to have less features than SPD5 and some of the forum comments on the topic have mixed reviews.

I may try another USB3 card to see if the problem persists.  I've also contacted the card manufacture to see if I should be using a different driver.


Will this annoying bug fixed or not?

We, the customers, should at least be worthy enough to get any response from StorageCraft about this really nasty bug.

Will it get fixed or not?




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