The genuine issch.exe file is a software component of InstallShield Update Service by Flexera Software. The InstallShield Update Service is an optional component of InstallShield that software developers can include in their product installation. It runs in the background on the end-user's system and detects when the developer has made automatic updates available for their software product. It then automatically schedules a task to execute which will download and run the update installer. Developers do not always provide a configuration option that turns off this service for their application so Flexera has made available to end-users the Software Manager, which they can use to control the execution of the Update Service Scheduler with respect to a specific application. Flexera Software is an American company headquartered in Chicago, IL, originally formed as Acresso in 2008 (and renamed to Flexera in 2009) when Macrovision, (now Rovi), sold its software division to an investment fund. It provides application producers and enterprises with tools to construct software installation packages and monitor software licensing compliance. It is still backed by private equity although the majority interest is now owned by a division of the Ontario Teachers Pension Plan.
ISSch stands for InstallShield Update Service Scheduler
The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the issch.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.
Description: Issch.exe is not essential for the Windows OS and causes relatively few problems. Issch.exe is located in a subfolder of "C:\Program Files\Common Files"—for instance C:\Program Files (x86)\Common Files\InstallShield\UpdateService\.
Known file sizes on Windows 10/11/7 are 81,920 bytes (80% of all occurrences), 69,632 bytes, 86,960 bytes, 79,136 bytes or 73,728 bytes.
The issch.exe file is not a Windows core file. The software starts upon Windows startup (see Registry key: MACHINE\Run, Run, TaskScheduler).
The program has no visible window.
Therefore the technical security rating is 42% dangerous; but you should also compare this rating with the user reviews.
Uninstalling this variant:
In the event of any problems with issch.exe, you could ask for help from Support, update to a possibly bug-fixed version or uninstall the associated program (Start > Control Panel > Uninstall a Program > InstallShield Update Service Scheduler).
If issch.exe is located in a subfolder of the user's profile folder, the security rating is 86% dangerous. The file size is 1,316,352 bytes (38% of all occurrences), 1,176,576 bytes and 5 more variants.
The file is not a Windows system file. The program has no visible window. The process uses ports to connect to or from a LAN or the Internet.
If issch.exe is located in a subfolder of "C:\Program Files", the security rating is 84% dangerous. The file size is 1,316,352 bytes (44% of all occurrences), 1,176,576 bytes, 805,376 bytes, 804,864 bytes or 1,235,456 bytes.
The program has no visible window. It is not a Windows core file. The process listens for or sends data on open ports to a LAN or the Internet.
If issch.exe is located in a subfolder of the user's "Documents" folder, the security rating is 76% dangerous. The file size is 805,376 bytes.
"ISUSScheduler" is not required to run at start up. InstallShield Update Service Scheduler. Automatically searches for and performs any updates to the software so you’re always working with the most current version
Important: Some malware camouflages itself as issch.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder, for example Generic PUA ML (PUA) (detected by Sophos), and Win32:Malware-gen (detected by Avast). Therefore, you should check the issch.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.
Score
User Comments
I know the auto update can sometimes be a pain. Not required if you perform regular update Leif Pedersen
It is not needed. Programs should be updated manually, not automatically, so the user may know what changed when a problem does occur. It is deceptive, as it is unclear which program installs the Install Shield Updater, and there is no record of the Install Shield Updater in add and remove programs. Rob McCrea
Installed with Dragon Naturally Speaking. Harmless Matthew
It's good, runs in the background, and installs updates. Swat
Configurable through the "Program Updates" icon in Control Panel. But even if you tell it not to update any program automatically, this process continues to run, even after reboot. Those who say it is safe likely work for (or are affiliated with) Macrovision. It's more of a nuisance than anything else. Personally, I disabled it by removing it from the registry. You can also use MSCONFIG... under the startup tab, unselect ISUSPM and issch. Peter
Update Manager -- May install or re-configure ANYTHING
Summary: Average user rating of issch.exe:
based on 65 votes with 9 user comments.
33 users think issch.exe is essential for Windows or an installed application.
4 users think it's probably harmless.
17 users think it's neither essential nor dangerous.
7 users suspect danger.
4 users think issch.exe is dangerous and recommend removing it.
4 users don't grade issch.exe ("not sure about it").
Best practices for resolving issch issues
A clean and tidy computer is the key requirement for avoiding problems with issch. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.
Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.
To get your computer running as fast as it did on day one, you can 8reset your PC. Your personal files will remain intact, but any programs you installed will need to be reinstalled.
To help you analyze the issch.exe process on your computer, the following programs have proven to be helpful: ASecurity Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. A good Bantivirus software detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.
Score
User Comments
Leif Pedersen
Rob McCrea
Joshua Haglund (further information)
chunt
Matthew
Swat
Peter
(further information)
Summary: Average user rating of issch.exe: based on 65 votes with 9 user comments. 33 users think issch.exe is essential for Windows or an installed application. 4 users think it's probably harmless. 17 users think it's neither essential nor dangerous. 7 users suspect danger. 4 users think issch.exe is dangerous and recommend removing it. 4 users don't grade issch.exe ("not sure about it").