Superfetch je proces sustava Windows koji je tijekom godina imao više imena. U sustavu Windows XP^{(Windows XP)} bio je poznat kao Prefetch . Superfetch je predstavljen u sustavu Windows Vista^{(Windows Vista)} , a na najnovijim verzijama sustava Windows 10 sada je poznat kao Sysmain .

U konačnici, svrha svake generacije Superfetcha^(Superfetch) bila je ista: povećati performanse sustava Windows unaprijed učitavanjem aplikacija koje često koristite u RAM prije nego što ih trebate upotrijebiti. Ali što je Superfetch ?

Kako radi Superfetch (Sysmain)?^{(How Does Superfetch (Sysmain) Work?)}

U najnovijim verzijama sustava Windows 10 , usluga Superfetch sada se pojavljuje pod imenom SysMain . U Upravitelju zadataka^{(Task Manager)} prikazuje se kao Service Host: SysMain .

Ako koristite stariju verziju sustava Windows 10 ili bilo koju verziju sustava Windows 7 ili 8, to će se prikazati u Upravitelju zadataka^{(Task Manager)} kao Service Host: Superfetch .

Ova usluga radi u pozadini (koristeći vrlo malo snage procesora^(CPU) ) i analizira koliko RAM-a^(RAM) koristite i koje aplikacije najčešće pokrećete. Sve aplikacije koje usluga prepozna kao "često korištene", počet će unaprijed učitavati aplikaciju u RAM . Na ovaj način, sljedeći put kada pokrenete aplikaciju, ona će se pokrenuti mnogo brže.

Možda ste zabrinuti da to znači da Superfetch koristi svu vašu RAM memoriju^(RAM) , ali nije. Usluga se fokusira na prethodno učitavanje aplikacija u neiskorišteni RAM . Ovo se ne registrira kao potrošena memorija. To ćete vidjeti ako otvorite Upravitelj zadataka^{(Task Manager)} na kartici Procesi^(Processes) i pogledate svoju upotrebu memorije^(Memory) .

Iako Superfetch troši svu neiskorištenu RAM memoriju^(RAM) s unaprijed instaliranim aplikacijama, potrošnja RAM -a još uvijek ne pokazuje 100%. To je zato što Superfetch radi u pozadini i oslobodit će svu neiskorištenu RAM memoriju^(RAM) koju koristi kad god trebate tu memoriju upotrijebiti za druge aktivne zadatke.

Trebate li ubiti Superfetch (Sysmain)?^{(Should You Kill Superfetch (Sysmain)?)}

Općenito, nema potrebe zaustavljati Superfetch u radu . Koristi vrlo malu količinu CPU -a, a koristi samo neiskorišteni RAM . Sve je to običnom korisniku neprimjetno.

Međutim, bilo je izvješća na svim Microsoftovim^(Microsoft) korisničkim forumima da ponekad proces Superfetch ( Sysmain ) zapravo uzrokuje probleme s izvedbom. Neki od ovih prijavljenih problema uključuju:

• Konstantna 100% iskorištenost diska.
• Pregrijavanje^{(Overheating)} dovodi do gašenja sustava.
• Sporo^(Slow) vrijeme pokretanja pri pokretanju računala.
• Na slabom hardveru, Superfetch bi mogao koristiti više CPU - a i RAM-a^(RAM) nego što biste željeli.
• Poznato je da uzrokuje probleme s performansama tijekom igranja igara^{(performance issues while gaming)} .

Najčešći problem koji ljudi prijavljuju je problem 100% iskorištenosti diska. Ako ste to vi, onemogućavanje Superfetcha^(Superfetch) ili Sysmaina^(Sysmain) može riješiti problem.

Budući da je Superfetch samo značajka optimizacije sustava, nećete povrijediti Windows zaustavljanjem usluge. Međutim, možda ćete primijetiti da pokretanje vaših omiljenih aplikacija može potrajati malo dulje nego inače.

Kako onemogućiti Superfetch (Sysmain) u sustavu Windows 10^{(How To Disable Superfetch (Sysmain) In Windows 10)}

Je li sigurno onemogućiti Superfetch?

Ako nemate problema s performansama ili drugih problema, dobro je ostaviti Superfetch ( Sysmain ) da radi. To je koristan proces koji značajno skraćuje vrijeme potrebno za pokretanje programa koje često koristite.

Međutim, ako imate veliku iskorištenost tvrdog diska, stalne probleme s memorijom ili općenito lošu izvedbu, možete pokušati onemogućiti Superfetch da vidite hoće li to riješiti problem. Ako je tako, ostavite uslugu onemogućenom. U suprotnom^(Otherwise) ga ponovno uključite i nastavite s rješavanjem problema.

Da biste onemogućili Superfetch ( Sysmain ) u sustavu Windows 10:

1. Odaberite izbornik Start, upišite usluge^(services) i odaberite aplikaciju Usluge^(Services) . Također možete pritisnuti Windows + R , upisati services.msc i pritisnuti Enter.
2. U aplikaciji Usluge^(Services) pomaknite se prema dolje do SysMain , desnom tipkom miša kliknite uslugu i odaberite Zaustavi^(Stop) . Ako koristite stariju verziju sustava Windows , desnom tipkom miša kliknite uslugu SuperFetch i odaberite Zaustavi^(Stop) .

1. Sada morate spriječiti ponovno pokretanje usluge kada pokrenete Windows . Nakon što je usluga zaustavljena, ponovno desnom tipkom miša kliknite uslugu i odaberite Svojstva^(Properties) . 
2. U padajućem izborniku Vrsta pokretanja^(Startup) odaberite Onemogućeno^(Disabled) .

Sada je usluga SuperFetch ( SysMain ) trajno onemogućena i neće se ponovno pokrenuti sljedeći put kada pokrenete računalo.

Onemogućite Superfetch (Sysmain) pomoću uređivača registra^{(Disable Superfetch (Sysmain) With Registry Editor)}

Alternativa korištenju upravitelja zadataka^{(Task Manager)} za onemogućavanje Superfetcha^(Superfetch) u sustavu Windows 10^{(Windows 10)} je korištenje uređivača registra^{(Registry Editor)} . 

Prije nego što počnete raditi bilo što unutar registra, svakako prvo napravite potpunu sigurnosnu kopiju registra^{(take a full backup of the registry)} , za slučaj da nešto krene po zlu.

Kada budete spremni:

1. Odaberite izbornik Start, upišite regedit i odaberite aplikaciju Registry Editor . 
2. U uređivaču registra^{(Registry Editor)} idite na HKEY_LOCAL_MACHINE > SYSTEM > CurrentControlSet > Control > Session Manager > MemoryManagement > PrefetchParameters .

1. U ovom biste odjeljku trebali vidjeti ključ pod nazivom EnableSuperfetch . Desnom tipkom kliknite ovu tipku i odaberite Izmijeni^(Modify) .
2. U prozoru Uredi DWORD^{(Edit DWORD)} koji se pojavi, promijenite polje podataka o vrijednosti^{(Value data)} na 0 i odaberite U redu^(OK) .

Kad završite, možete zatvoriti uređivač registra .^{(Registry Editor)}

Ovaj unos u registru onemogućit će uslugu SuperFetch ( SysMain ) na vašem sustavu. Međutim, možda ćete morati ponovno pokrenuti Windows računalo prije nego što ova postavka registra stupi na snagu.

Omogućite ili onemogućite SuperFetch (SysMain) pomoću naredbenog retka^{(Enable Or Disable SuperFetch (SysMain) With Command Prompt)}

Ako više volite raditi s naredbenim redkom, postoje neke jednostavne naredbe koje možete koristiti da omogućite ili onemogućite uslugu SuperFetch .

Prvo otvorite naredbeni redak u administratorskom načinu^{(command prompt in administrator mode)} , a zatim upotrijebite sljedeće naredbe:

• Omogući^(Enable) : sc config “SysMain” start=auto & sc start “SysMain”
• Onemogući^(Disable) : sc stop “SysMain” & sc config “SysMain” start=onemogućeno

Napomena: Ako koristite stariju verziju sustava Windows , zamijenite "SysMain" s "SuperFetch" u gornjim naredbama.

Ako više volite PowerShell^{(prefer PowerShell)} , otvorite ga s administratorskim pravima i koristite sljedeće naredbe:

• Omogući^(Enable) : Set-Service -Name "SysMain" -StartupType Automatski -Status Running
• Onemogući^(Disable) : Stop-Service -Force -Name “SysMain”; Set-Service -Naziv "SysMain" -StartupType

Ovaj pristup može biti mnogo brži i jednostavniji od klikanja u Upravitelju zadataka^{(Task Manager)} ili Windows registru.

Što ako ovo ne riješi problem?^{(What If This Doesn’t Fix The Problem?)}

Ako onemogućavanje SuperFetch ( SysMain ) ne riješi vaš problem, onda bi nešto drugo moglo biti izvor problema. 

Ako još uvijek imate 100% iskorištenost diska, možda ćete morati izvršiti nadogradnju na veći tvrdi disk ili se odlučiti za nadogradnju na SSD pogon. SSD diskovi^{(SSD drives)} su sada vrlo pristupačni i imaju stope prijenosa podataka daleko iznad onih u tradicionalnim tvrdim diskovima.

Ako imate problema s korištenjem CPU -a, istražite druge savjete^{(other CPU troubleshooting tips)} za rješavanje problema s CPU-om kako biste otkrili krivca koji prožvače sve vaše CPU resurse.

What Is Superfetch (Sysmain) On Windows 10 And How To Disable It

Superfetch is a Windows systеm process that has had multiple names throughoυt the years. On Windows XP it was known as Prefetch. Superfetch waѕ introduced in Windowѕ Vista, and on the latest versions of Wіndоws 10 it’s now known аs Sysmain.

Ultimately, the purpose of every generation of Superfetch has been the same: to increase the performance of Windows by preloading apps you frequently use into RAM before you need to use them. But what is Superfetch?

How Does Superfetch (Sysmain) Work?

In the latest versions of Windows 10, the Superfetch service now shows up under the name SysMain. In the Task Manager, it shows up as Service Host: SysMain.

If you’re running an older version of Windows 10 or any version of Windows 7 or 8, this will show up in the Task Manager as Service Host: Superfetch.

This service runs in the background (using very little CPU power) and analyzes how much RAM you’re using and what apps you run most frequently. Any apps the service recognizes as “frequently used”, it’ll start preloading the app into RAM. This way, the next time you run the app, it’ll launch much more quickly.

You may be concerned that this means Superfetch is using up all of your RAM, but it isn’t. The service focuses on pre-loading apps into unused RAM. This doesn’t register as consumed memory. You’ll see this if you open Task Manager to the Processes tab and look at your Memory usage.

Even though Superfetch is consuming all unused RAM with preloaded apps, consumed RAM usage still doesn’t show 100%. This is because Superfetch is running in the background, and it’ll release any unused RAM it’s using whenever you need to use that memory for other active tasks.

Should You Kill Superfetch (Sysmain)?

Generally, there’s no need to stop Superfetch from running. It uses a very miniscule amount of CPU, and only uses unused RAM. All of this is unnoticeable to the general user.

However, there have been some reports throughout Microsoft user forums that sometimes the Superfetch (Sysmain) process actually causes performance issues. Some of these reported issues include:

• Constant 100% disk utilization.
• Overheating leading to system shutdown.
• Slow bootup time when you start your computer.
• On weak hardware, Superfetch could use more CPU and RAM than you might like.
• Has been known to cause performance issues while gaming.

The most common problem people report is the 100% disk utilization issue. If this is you, then disabling Superfetch or Sysmain may resolve the problem.

Since Superfetch is only a system optimization feature, you won’t hurt Windows by stopping the service. However, you may notice that launching your favorite apps may take a little longer than usual.

How To Disable Superfetch (Sysmain) In Windows 10

Is it safe to disable Superfetch?

If you aren’t experiencing performance issues or other problems, it’s a good idea to leave Superfetch (Sysmain) running. It is a useful process that significantly cuts down on the time it takes you to launch programs that you use frequently.

However, if you are experiencing high hard drive utilization, constant memory issues, or overall poor performance, you can try disabling Superfetch to see if it resolves the problem. If it does, then leave the service disabled. Otherwise, turn it back on and continue troubleshooting.

To disable Superfetch (Sysmain) on Windows 10:

1. Select the Start menu, type services, and select the Services app. You could also press Windows + R, type services.msc and press Enter.
2. In the Services app, scroll down to SysMain, right-click on the service and select Stop. If you’re running an older version of Windows, right-click on the SuperFetch service and select Stop.

1. Now you need to prevent the service from restarting when you start Windows. Once the service is stopped, right-click on the service again and select Properties. 
2. In the Startup type dropdown, select Disabled.

Now the SuperFetch (SysMain) service is permanently disabled and will not restart the next time you start your computer.

Disable Superfetch (Sysmain) With Registry Editor

An alternative to using Task Manager to disable Superfetch on Windows 10 is using the Registry Editor. 

Before you start doing anything inside the registry, make sure you take a full backup of the registry first, just in case anything goes wrong.

When you’re ready:

1. Select the Start menu, type regedit, and select the Registry Editor app. 
2. In the Registry Editor, navigate to HKEY_LOCAL_MACHINE > SYSTEM > CurrentControlSet > Control > Session Manager > MemoryManagement > PrefetchParameters.

1. In this section, you should see a key called EnableSuperfetch. Right-click this key and select Modify.
2. In the Edit DWORD window that pops up, change the Value data field to 0 and select OK.

You can close the Registry Editor when you’re finished.

This registry entry will disable the SuperFetch (SysMain) service on your system. However, you may need to restart your Windows machine before this registry setting takes effect.

Enable Or Disable SuperFetch (SysMain) With Command Prompt

If you prefer working with the command prompt, there are some simple commands you can use to enable or disable the SuperFetch service.

Open the command prompt in administrator mode first, and then use the following commands:

• Enable: sc config “SysMain” start=auto & sc start “SysMain”
• Disable: sc stop “SysMain” & sc config “SysMain” start=disabled

Note: If you’re using an older version of Windows, replace “SysMain” with “SuperFetch” in the commands above.

If you prefer PowerShell, open it with administrator rights and use the following commands:

• Enable: Set-Service -Name “SysMain” -StartupType Automatic -Status Running
• Disable: Stop-Service -Force -Name “SysMain”; Set-Service -Name “SysMain” -StartupType

This approach can be much faster and simpler than clicking around in the Task Manager or the Windows registry.

What If This Doesn’t Fix The Problem?

If disabling SuperFetch (SysMain) doesn’t resolve your issue, then something else may be the source of the problem. 

If you’re still having 100% disk utilization, you may need to upgrade to a larger hard drive, or opt to upgrade to an SSD drive. SSD drives are very affordable now, and have data-transfer rates far above that of traditional hard drives.

If you’re having CPU utilization issues, then explore other CPU troubleshooting tips to nail down the culprit that’s chewing up all of your CPU resources.

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