$NtServicePackUninstall$ $PatchCache$ dllcache

Hello
Should I delete C:\WINDOWS\$NtServicePackUninstall$ and
C:\WINDOWS\Installer\$PatchCache$ folders to gain space on the HDD? The
Windows is XP Pro SP2.
My C:\WINDOWS\system32\dllcache is 570 mb in size. May I clean it up?

"Dmitry Kopnichev" <kopn@bk.ruDelete> wrote in message
news:e4y%23BK18FHA.3880@TK2MSFTNGP12.phx.gbl...
> Hello
> Should I delete C:\WINDOWS\$NtServicePackUninstall$ and
> C:\WINDOWS\Installer\$PatchCache$ folders to gain space on the HDD? The
> Windows is XP Pro SP2.
> My C:\WINDOWS\system32\dllcache is 570 mb in size. May I clean it up?
>
>

You can delete the Service Pack and Patch folders but you
will soon run out of space again. Get a larger disk!

Leave the DLLCache alone.

Thanks Pegasus.
I tried to use a larger disk. But my system does not see it as a boot disk.
I wrote about this in my second message.
"Pegasus (MVP)" <I.can@fly.com> wrote in message
news:uQQxnN18FHA.744@TK2MSFTNGP10.phx.gbl...
>
> "Dmitry Kopnichev" <kopn@bk.ruDelete> wrote in message
> news:e4y%23BK18FHA.3880@TK2MSFTNGP12.phx.gbl...
>> Hello
>> Should I delete C:\WINDOWS\$NtServicePackUninstall$ and
>> C:\WINDOWS\Installer\$PatchCache$ folders to gain space on the HDD? The
>> Windows is XP Pro SP2.
>> My C:\WINDOWS\system32\dllcache is 570 mb in size. May I clean it up?
>>
>>
>
> You can delete the Service Pack and Patch folders but you
> will soon run out of space again. Get a larger disk!
>
> Leave the DLLCache alone.
>
>

Assuming that your existing disk is fully formatted as a single C:, you
could add the new larger disk as a second disk as D: and start
installing and/or uninstalling&reinstalling the larger apps here.

Until then, assuming that you are happy that you no longer need to
uninstall SP2 (or you have installed subsequent hotfixes), you can
happily delete it's uninstall folder. Since you have an uninstall
folder, I assume that you also have a ServicePackFiles folder. This can
be moved to D: and the registry updated accordingly
(HKLM\SW\MS\Windows\CV\Setup\ServicePackSourcePath )

The System File Checker (SFC) uses the DLLcache folder as a backup for
important system files. If an application overwrites one of the these
system files, the put back a copy of the original from DLLCache. Look
up support.microsoft.com for details on using SFC to clear the cache
and limit it's size. Be warned though that if an app overwrites a file
and the DLLCache copy of it missing (through resticting the DLLCache
folder size) you may need to get out your OS and/or SP CD again
sometime.

Finally, I'm not sure if the $PATCHCACHE$ folder can safely be deleted.
However, the largest subfolder on my machine looks like containing
copies of Office files. Since it is extremely unlikely that these need
accessed before the OS's NTFS compression drivers are loaded, I used
NTFS compression on this subfolder (reducing 137Mb to 87Mb.)

Finally, you could move the Virtual Memory Pageing File over to D:,
assuming you will never want to send a Blue Screen memory dump to
Microsoft.

Hope this helps,
Charlie


--
charlieo

Thanks, Charlie!
"charlieo" <charlieo.201omd@pcbanter.net> ÓÏÏÂÝÉÌ/ÓÏÏÂÝÉÌÁ × ÎÏ×ÏÓÔÑÈ
ÓÌÅÄÕÀÝÅÅ: news:charlieo.201omd@pcbanter.net...
>
> Assuming that your existing disk is fully formatted as a single C:, you
> could add the new larger disk as a second disk as D: and start
> installing and/or uninstalling&reinstalling the larger apps here.
>
> Until then, assuming that you are happy that you no longer need to
> uninstall SP2 (or you have installed subsequent hotfixes), you can
> happily delete it's uninstall folder. Since you have an uninstall
> folder, I assume that you also have a ServicePackFiles folder. This can
> be moved to D: and the registry updated accordingly
> (HKLM\SW\MS\Windows\CV\Setup\ServicePackSourcePath )
>
> The System File Checker (SFC) uses the DLLcache folder as a backup for
> important system files. If an application overwrites one of the these
> system files, the put back a copy of the original from DLLCache. Look
> up support.microsoft.com for details on using SFC to clear the cache
> and limit it's size. Be warned though that if an app overwrites a file
> and the DLLCache copy of it missing (through resticting the DLLCache
> folder size) you may need to get out your OS and/or SP CD again
> sometime.
>
> Finally, I'm not sure if the $PATCHCACHE$ folder can safely be deleted.
> However, the largest subfolder on my machine looks like containing
> copies of Office files. Since it is extremely unlikely that these need
> accessed before the OS's NTFS compression drivers are loaded, I used
> NTFS compression on this subfolder (reducing 137Mb to 87Mb.)
>
> Finally, you could move the Virtual Memory Pageing File over to D:,
> assuming you will never want to send a Blue Screen memory dump to
> Microsoft.
>
> Hope this helps,
> Charlie
>
>
> --
> charlieo